diff --git a/lib/node_modules/@stdlib/blas/ext/base/dcombinations/README.md b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/README.md
new file mode 100644
index 000000000000..1f2c2a4718d1
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/README.md
@@ -0,0 +1,320 @@
+
+
+# dcombinations
+
+> Compute combinations of a specified length from double-precision floating-point strided array elements.
+
+
+
+## Usage
+
+```javascript
+var dcombinations = require( '@stdlib/blas/ext/base/dcombinations' );
+```
+
+#### dcombinations( N, k, replacement, x, strideX, out, LDO )
+
+Computes combinations of a specified length from double-precision floating-point strided array elements.
+
+```javascript
+var Float64Array = require( '@stdlib/array/float64' );
+
+var x = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+var out = new Float64Array( 12 );
+
+dcombinations( 4, 2, false, x, 1, out, 2 );
+// out => [ 1.0, 2.0, 1.0, 3.0, 1.0, 4.0, 2.0, 3.0, 2.0, 4.0, 3.0, 4.0 ]
+```
+
+The function has the following parameters:
+
+- **N**: number of indexed elements.
+- **k**: number of elements to combine.
+- **replacement**: boolean indicating whether to allow duplication in combination.
+- **x**: input [`Float64Array`][@stdlib/array/float64].
+- **strideX**: stride length.
+- **out**: output [`Float64Array`][@stdlib/array/float64].
+- **LDO**: stride length for the leading dimension of `out`.
+
+The `N`, `k`, and stride parameters determine which elements in the strided arrays are accessed at runtime. For example, to operate on every other element:
+
+```javascript
+var Float64Array = require( '@stdlib/array/float64' );
+
+var x = new Float64Array( [ 1.0, 0.0, 2.0, 0.0, 3.0 ] );
+var out = new Float64Array( 6 );
+
+dcombinations( 3, 2, false, x, 2, out, 2 );
+// out => [ 1.0, 2.0, 1.0, 3.0, 2.0, 3.0 ]
+```
+
+Note that indexing is relative to the first index. To introduce an offset, use [`typed array`][mdn-typed-array] views.
+
+```javascript
+var Float64Array = require( '@stdlib/array/float64' );
+
+// Initial array:
+var x0 = new Float64Array( [ 0.0, 1.0, 2.0, 3.0 ] );
+
+// Create an offset view:
+var x1 = new Float64Array( x0.buffer, x0.BYTES_PER_ELEMENT*1 ); // start at 2nd element
+
+var out = new Float64Array( 6 );
+
+dcombinations( 3, 2, false, x1, 1, out, 2 );
+// out => [ 1.0, 2.0, 1.0, 3.0, 2.0, 3.0 ]
+```
+
+
+
+#### dcombinations.ndarray( N, k, replacement, x, strideX, offsetX, out, strideOut1, strideOut2, offsetOut )
+
+
+
+Computes combinations of a specified length from double-precision floating-point strided array elements using alternative indexing semantics.
+
+```javascript
+var Float64Array = require( '@stdlib/array/float64' );
+
+var x = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+var out = new Float64Array( 12 );
+
+dcombinations.ndarray( 4, 2, false, x, 1, 0, out, 2, 1, 0 );
+// out => [ 1.0, 2.0, 1.0, 3.0, 1.0, 4.0, 2.0, 3.0, 2.0, 4.0, 3.0, 4.0 ]
+```
+
+The function has the following additional parameters:
+
+- **offsetX**: starting index for `x`.
+- **strideOut1**: stride length of the first dimension of `out`.
+- **strideOut2**: stride length of the second dimension of `out`.
+- **offsetOut**: starting index for `out`.
+
+While [`typed array`][mdn-typed-array] views mandate a view offset based on the underlying buffer, the offset parameters support indexing semantics based on a starting index. For example, to access only the last three elements:
+
+```javascript
+var Float64Array = require( '@stdlib/array/float64' );
+
+var x = new Float64Array( [ 0.0, 0.0, 1.0, 2.0, 3.0 ] );
+var out = new Float64Array( 6 );
+
+dcombinations.ndarray( 3, 2, false, x, 1, 2, out, 2, 1, 0 );
+// out => [ 1.0, 2.0, 1.0, 3.0, 2.0, 3.0 ]
+```
+
+
+
+
+
+
+
+## Notes
+
+- If `N <= 0` or `k <= 0`, both functions return `out` unchanged.
+- If `replacement` is `false` and `k > N`, both functions return `out` unchanged.
+- For an input array `x` of length `N`, the output array `out` must contain at least `C(N, k)` combinations if `replacement` is `false`, or `C(N+k-1, k)` combinations if `replacement` is `true`, where each combination has `k` elements.
+
+
+
+
+
+
+
+## Examples
+
+
+
+```javascript
+var discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
+var Float64Array = require( '@stdlib/array/float64' );
+var dcombinations = require( '@stdlib/blas/ext/base/dcombinations' );
+
+var N = 5;
+var k = 2;
+var x = discreteUniform( N, 1, 10, {
+ 'dtype': 'float64'
+});
+console.log( x );
+
+var out = new Float64Array( 20 );
+
+dcombinations( N, k, false, x, 1, out, 2 );
+console.log( out );
+```
+
+
+
+
+
+
+
+* * *
+
+
+
+## C APIs
+
+
+
+
+
+
+
+
+
+
+
+### Usage
+
+```c
+#include "stdlib/blas/ext/base/dcombinations.h"
+```
+
+#### stdlib_strided_dcombinations( N, k, replacement, \*X, strideX, \*Out, LDO )
+
+Computes combinations of a specified length from double-precision floating-point strided array elements.
+
+```c
+double x[] = { 1.0, 2.0, 3.0, 4.0 };
+double out[] = { 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 };
+
+stdlib_strided_dcombinations( 4, 2, false, x, 1, out, 2 );
+```
+
+The function accepts the following arguments:
+
+- **N**: `[in] CBLAS_INT` number of indexed elements.
+- **k**: `[in] CBLAS_INT` number of elements to combine.
+- **replacement**: `[in] bool` boolean indicating whether to allow duplication in combination.
+- **X**: `[in] double*` input array.
+- **strideX**: `[in] CBLAS_INT` stride length.
+- **Out**: `[out] double*` output array.
+- **LDO**: `[in] CBLAS_INT` stride length for the leading dimension of `Out`.
+
+```c
+void stdlib_strided_dcombinations( const CBLAS_INT N, const CBLAS_INT k, const bool replacement, const double *X, const CBLAS_INT strideX, double *Out, const CBLAS_INT LDO );
+```
+
+
+
+#### stdlib_strided_dcombinations_ndarray( N, k, replacement, \*X, strideX, offsetX, \*Out, strideOut1, strideOut2, offsetOut )
+
+
+
+Computes combinations of a specified length from double-precision floating-point strided array elements using alternative indexing semantics.
+
+```c
+double x[] = { 1.0, 2.0, 3.0, 4.0 };
+double out[] = { 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 };
+
+stdlib_strided_dcombinations_ndarray( 4, 2, false, x, 1, 0, out, 2, 1, 0 );
+```
+
+The function accepts the following arguments:
+
+- **N**: `[in] CBLAS_INT` number of indexed elements.
+- **k**: `[in] CBLAS_INT` number of elements to combine.
+- **replacement**: `[in] bool` boolean indicating whether to allow duplication in combination.
+- **X**: `[in] double*` input array.
+- **strideX**: `[in] CBLAS_INT` stride length.
+- **offsetX**: `[in] CBLAS_INT` starting index for `X`.
+- **Out**: `[out] double*` output array.
+- **strideOut1**: `[in] CBLAS_INT` stride length of the first dimension of `Out`.
+- **strideOut2**: `[in] CBLAS_INT` stride length of the second dimension of `Out`.
+- **offsetOut**: `[in] CBLAS_INT` starting index for `Out`.
+
+```c
+void stdlib_strided_dcombinations_ndarray( const CBLAS_INT N, const CBLAS_INT k, const bool replacement, const double *X, const CBLAS_INT strideX, const CBLAS_INT offsetX, double *Out, const CBLAS_INT strideOut1, const CBLAS_INT strideOut2, const CBLAS_INT offsetOut );
+```
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+### Examples
+
+```c
+#include "stdlib/blas/ext/base/dcombinations.h"
+#include
+#include
+
+int main( void ) {
+ // Create a strided array:
+ double x[] = { 1.0, 2.0, 3.0, 4.0 };
+
+ // Create an output array:
+ double out[] = { 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 };
+
+ // Compute combinations:
+ stdlib_strided_dcombinations( 4, 2, false, x, 1, out, 2 );
+
+ // Print each combination:
+ for ( int i = 0; i < 6; i++ ) {
+ printf( "[ %lf, %lf ]\n", out[ i*2 ], out[ (i*2)+1 ] );
+ }
+}
+```
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+[@stdlib/array/float64]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/array/float64
+
+[mdn-typed-array]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray
+
+
+
+
+
+
+
+
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dcombinations/benchmark/benchmark.js b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/benchmark/benchmark.js
new file mode 100644
index 000000000000..fc3471b59cb0
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/benchmark/benchmark.js
@@ -0,0 +1,105 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var bench = require( '@stdlib/bench' );
+var uniform = require( '@stdlib/random/array/uniform' );
+var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var pow = require( '@stdlib/math/base/special/pow' );
+var Float64Array = require( '@stdlib/array/float64' );
+var format = require( '@stdlib/string/format' );
+var pkg = require( './../package.json' ).name;
+var dcombinations = require( './../lib/dcombinations.js' );
+
+
+// VARIABLES //
+
+var options = {
+ 'dtype': 'float64'
+};
+
+
+// FUNCTIONS //
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {PositiveInteger} len - array length
+* @returns {Function} benchmark function
+*/
+function createBenchmark( len ) {
+ var out;
+ var x;
+ var C;
+
+ x = uniform( len, -10.0, 10.0, options );
+ C = ( len * ( len - 1 ) ) / 2; // C(len, 2) for k=2 without replacement
+ out = new Float64Array( C * 2 );
+ return benchmark;
+
+ /**
+ * Benchmark function.
+ *
+ * @private
+ * @param {Benchmark} b - benchmark instance
+ */
+ function benchmark( b ) {
+ var z;
+ var i;
+
+ b.tic();
+ for ( i = 0; i < b.iterations; i++ ) {
+ z = dcombinations( x.length, 2, false, x, 1, out, 2 );
+ if ( isnan( z[ 0 ] ) ) {
+ b.fail( 'should not return NaN' );
+ }
+ }
+ b.toc();
+ if ( isnan( z[ 0 ] ) ) {
+ b.fail( 'should not return NaN' );
+ }
+ b.pass( 'benchmark finished' );
+ b.end();
+ }
+}
+
+
+// MAIN //
+
+function main() {
+ var len;
+ var min;
+ var max;
+ var f;
+ var i;
+
+ min = 1; // 10^min
+ max = 3; // 10^max
+
+ for ( i = min; i <= max; i++ ) {
+ len = pow( 10, i );
+ f = createBenchmark( len );
+ bench( format( '%s:len=%d', pkg, len ), f );
+ }
+}
+
+main();
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dcombinations/benchmark/benchmark.native.js b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/benchmark/benchmark.native.js
new file mode 100644
index 000000000000..f87dd635138c
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/benchmark/benchmark.native.js
@@ -0,0 +1,110 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var resolve = require( 'path' ).resolve;
+var bench = require( '@stdlib/bench' );
+var uniform = require( '@stdlib/random/array/uniform' );
+var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var pow = require( '@stdlib/math/base/special/pow' );
+var Float64Array = require( '@stdlib/array/float64' );
+var tryRequire = require( '@stdlib/utils/try-require' );
+var format = require( '@stdlib/string/format' );
+var pkg = require( './../package.json' ).name;
+
+
+// VARIABLES //
+
+var dcombinations = tryRequire( resolve( __dirname, './../lib/dcombinations.native.js' ) );
+var opts = {
+ 'skip': ( dcombinations instanceof Error )
+};
+var options = {
+ 'dtype': 'float64'
+};
+
+
+// FUNCTIONS //
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {PositiveInteger} len - array length
+* @returns {Function} benchmark function
+*/
+function createBenchmark( len ) {
+ var out;
+ var x;
+ var C;
+
+ x = uniform( len, -10.0, 10.0, options );
+ C = ( len * ( len - 1 ) ) / 2; // C(len, 2) for k=2 without replacement
+ out = new Float64Array( C * 2 );
+ return benchmark;
+
+ /**
+ * Benchmark function.
+ *
+ * @private
+ * @param {Benchmark} b - benchmark instance
+ */
+ function benchmark( b ) {
+ var z;
+ var i;
+
+ b.tic();
+ for ( i = 0; i < b.iterations; i++ ) {
+ z = dcombinations( x.length, 2, false, x, 1, out, 2 );
+ if ( isnan( z[ 0 ] ) ) {
+ b.fail( 'should not return NaN' );
+ }
+ }
+ b.toc();
+ if ( isnan( z[ 0 ] ) ) {
+ b.fail( 'should not return NaN' );
+ }
+ b.pass( 'benchmark finished' );
+ b.end();
+ }
+}
+
+
+// MAIN //
+
+function main() {
+ var len;
+ var min;
+ var max;
+ var f;
+ var i;
+
+ min = 1; // 10^min
+ max = 3; // 10^max
+
+ for ( i = min; i <= max; i++ ) {
+ len = pow( 10, i );
+ f = createBenchmark( len );
+ bench( format( '%s::native:len=%d', pkg, len ), opts, f );
+ }
+}
+
+main();
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dcombinations/benchmark/benchmark.ndarray.js b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/benchmark/benchmark.ndarray.js
new file mode 100644
index 000000000000..af48b22830e3
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/benchmark/benchmark.ndarray.js
@@ -0,0 +1,105 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var bench = require( '@stdlib/bench' );
+var uniform = require( '@stdlib/random/array/uniform' );
+var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var pow = require( '@stdlib/math/base/special/pow' );
+var Float64Array = require( '@stdlib/array/float64' );
+var format = require( '@stdlib/string/format' );
+var pkg = require( './../package.json' ).name;
+var dcombinations = require( './../lib/ndarray.js' );
+
+
+// VARIABLES //
+
+var options = {
+ 'dtype': 'float64'
+};
+
+
+// FUNCTIONS //
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {PositiveInteger} len - array length
+* @returns {Function} benchmark function
+*/
+function createBenchmark( len ) {
+ var out;
+ var x;
+ var C;
+
+ x = uniform( len, -10.0, 10.0, options );
+ C = ( len * ( len - 1 ) ) / 2; // C(len, 2) for k=2 without replacement
+ out = new Float64Array( C * 2 );
+ return benchmark;
+
+ /**
+ * Benchmark function.
+ *
+ * @private
+ * @param {Benchmark} b - benchmark instance
+ */
+ function benchmark( b ) {
+ var z;
+ var i;
+
+ b.tic();
+ for ( i = 0; i < b.iterations; i++ ) {
+ z = dcombinations( x.length, 2, false, x, 1, 0, out, 2, 1, 0 );
+ if ( isnan( z[ 0 ] ) ) {
+ b.fail( 'should not return NaN' );
+ }
+ }
+ b.toc();
+ if ( isnan( z[ 0 ] ) ) {
+ b.fail( 'should not return NaN' );
+ }
+ b.pass( 'benchmark finished' );
+ b.end();
+ }
+}
+
+
+// MAIN //
+
+function main() {
+ var len;
+ var min;
+ var max;
+ var f;
+ var i;
+
+ min = 1; // 10^min
+ max = 3; // 10^max
+
+ for ( i = min; i <= max; i++ ) {
+ len = pow( 10, i );
+ f = createBenchmark( len );
+ bench( format( '%s:ndarray:len=%d', pkg, len ), f );
+ }
+}
+
+main();
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dcombinations/benchmark/benchmark.ndarray.native.js b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/benchmark/benchmark.ndarray.native.js
new file mode 100644
index 000000000000..e74046f72b0f
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/benchmark/benchmark.ndarray.native.js
@@ -0,0 +1,110 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var resolve = require( 'path' ).resolve;
+var bench = require( '@stdlib/bench' );
+var uniform = require( '@stdlib/random/array/uniform' );
+var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var pow = require( '@stdlib/math/base/special/pow' );
+var Float64Array = require( '@stdlib/array/float64' );
+var tryRequire = require( '@stdlib/utils/try-require' );
+var format = require( '@stdlib/string/format' );
+var pkg = require( './../package.json' ).name;
+
+
+// VARIABLES //
+
+var dcombinations = tryRequire( resolve( __dirname, './../lib/ndarray.native.js' ) );
+var opts = {
+ 'skip': ( dcombinations instanceof Error )
+};
+var options = {
+ 'dtype': 'float64'
+};
+
+
+// FUNCTIONS //
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {PositiveInteger} len - array length
+* @returns {Function} benchmark function
+*/
+function createBenchmark( len ) {
+ var out;
+ var x;
+ var C;
+
+ x = uniform( len, -10.0, 10.0, options );
+ C = ( len * ( len - 1 ) ) / 2; // C(len, 2) for k=2 without replacement
+ out = new Float64Array( C * 2 );
+ return benchmark;
+
+ /**
+ * Benchmark function.
+ *
+ * @private
+ * @param {Benchmark} b - benchmark instance
+ */
+ function benchmark( b ) {
+ var z;
+ var i;
+
+ b.tic();
+ for ( i = 0; i < b.iterations; i++ ) {
+ z = dcombinations( x.length, 2, false, x, 1, 0, out, 2, 1, 0 );
+ if ( isnan( z[ 0 ] ) ) {
+ b.fail( 'should not return NaN' );
+ }
+ }
+ b.toc();
+ if ( isnan( z[ 0 ] ) ) {
+ b.fail( 'should not return NaN' );
+ }
+ b.pass( 'benchmark finished' );
+ b.end();
+ }
+}
+
+
+// MAIN //
+
+function main() {
+ var len;
+ var min;
+ var max;
+ var f;
+ var i;
+
+ min = 1; // 10^min
+ max = 3; // 10^max
+
+ for ( i = min; i <= max; i++ ) {
+ len = pow( 10, i );
+ f = createBenchmark( len );
+ bench( format( '%s::native:ndarray:len=%d', pkg, len ), opts, f );
+ }
+}
+
+main();
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dcombinations/benchmark/c/Makefile b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/benchmark/c/Makefile
new file mode 100644
index 000000000000..0756dc7da20a
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/benchmark/c/Makefile
@@ -0,0 +1,146 @@
+#/
+# @license Apache-2.0
+#
+# Copyright (c) 2026 The Stdlib Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#/
+
+# VARIABLES #
+
+ifndef VERBOSE
+ QUIET := @
+else
+ QUIET :=
+endif
+
+# Determine the OS ([1][1], [2][2]).
+#
+# [1]: https://en.wikipedia.org/wiki/Uname#Examples
+# [2]: http://stackoverflow.com/a/27776822/2225624
+OS ?= $(shell uname)
+ifneq (, $(findstring MINGW,$(OS)))
+ OS := WINNT
+else
+ifneq (, $(findstring MSYS,$(OS)))
+ OS := WINNT
+else
+ifneq (, $(findstring CYGWIN,$(OS)))
+ OS := WINNT
+else
+ifneq (, $(findstring Windows_NT,$(OS)))
+ OS := WINNT
+endif
+endif
+endif
+endif
+
+# Define the program used for compiling C source files:
+ifdef C_COMPILER
+ CC := $(C_COMPILER)
+else
+ CC := gcc
+endif
+
+# Define the command-line options when compiling C files:
+CFLAGS ?= \
+ -std=c99 \
+ -O3 \
+ -Wall \
+ -pedantic
+
+# Determine whether to generate position independent code ([1][1], [2][2]).
+#
+# [1]: https://gcc.gnu.org/onlinedocs/gcc/Code-Gen-Options.html#Code-Gen-Options
+# [2]: http://stackoverflow.com/questions/5311515/gcc-fpic-option
+ifeq ($(OS), WINNT)
+ fPIC ?=
+else
+ fPIC ?= -fPIC
+endif
+
+# List of includes (e.g., `-I /foo/bar -I /beep/boop/include`):
+INCLUDE ?=
+
+# List of source files:
+SOURCE_FILES ?=
+
+# List of libraries (e.g., `-lopenblas -lpthread`):
+LIBRARIES ?=
+
+# List of library paths (e.g., `-L /foo/bar -L /beep/boop`):
+LIBPATH ?=
+
+# List of C targets:
+c_targets := benchmark.length.out
+
+
+# RULES #
+
+#/
+# Compiles source files.
+#
+# @param {string} [C_COMPILER] - C compiler (e.g., `gcc`)
+# @param {string} [CFLAGS] - C compiler options
+# @param {(string|void)} [fPIC] - compiler flag determining whether to generate position independent code (e.g., `-fPIC`)
+# @param {string} [INCLUDE] - list of includes (e.g., `-I /foo/bar -I /beep/boop/include`)
+# @param {string} [SOURCE_FILES] - list of source files
+# @param {string} [LIBPATH] - list of library paths (e.g., `-L /foo/bar -L /beep/boop`)
+# @param {string} [LIBRARIES] - list of libraries (e.g., `-lopenblas -lpthread`)
+#
+# @example
+# make
+#
+# @example
+# make all
+#/
+all: $(c_targets)
+
+.PHONY: all
+
+#/
+# Compiles C source files.
+#
+# @private
+# @param {string} CC - C compiler (e.g., `gcc`)
+# @param {string} CFLAGS - C compiler options
+# @param {(string|void)} fPIC - compiler flag determining whether to generate position independent code (e.g., `-fPIC`)
+# @param {string} INCLUDE - list of includes (e.g., `-I /foo/bar`)
+# @param {string} SOURCE_FILES - list of source files
+# @param {string} LIBPATH - list of library paths (e.g., `-L /foo/bar`)
+# @param {string} LIBRARIES - list of libraries (e.g., `-lopenblas`)
+#/
+$(c_targets): %.out: %.c
+ $(QUIET) $(CC) $(CFLAGS) $(fPIC) $(INCLUDE) -o $@ $(SOURCE_FILES) $< $(LIBPATH) -lm $(LIBRARIES)
+
+#/
+# Runs compiled benchmarks.
+#
+# @example
+# make run
+#/
+run: $(c_targets)
+ $(QUIET) ./$<
+
+.PHONY: run
+
+#/
+# Removes generated files.
+#
+# @example
+# make clean
+#/
+clean:
+ $(QUIET) -rm -f *.o *.out
+
+.PHONY: clean
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dcombinations/benchmark/c/benchmark.length.c b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/benchmark/c/benchmark.length.c
new file mode 100644
index 000000000000..9123e512e537
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/benchmark/c/benchmark.length.c
@@ -0,0 +1,202 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#include "stdlib/blas/ext/base/dcombinations.h"
+#include
+#include
+#include
+#include
+#include
+#include
+
+#define NAME "dcombinations"
+#define ITERATIONS 1000000
+#define REPEATS 3
+#define MIN 1
+#define MAX 3
+
+/**
+* Prints the TAP version.
+*/
+static void print_version( void ) {
+ printf( "TAP version 13\n" );
+}
+
+/**
+* Prints the TAP summary.
+*
+* @param total total number of tests
+* @param passing total number of passing tests
+*/
+static void print_summary( int total, int passing ) {
+ printf( "#\n" );
+ printf( "1..%d\n", total ); // TAP plan
+ printf( "# total %d\n", total );
+ printf( "# pass %d\n", passing );
+ printf( "#\n" );
+ printf( "# ok\n" );
+}
+
+/**
+* Prints benchmarks results.
+*
+* @param iterations number of iterations
+* @param elapsed elapsed time in seconds
+*/
+static void print_results( int iterations, double elapsed ) {
+ double rate = (double)iterations / elapsed;
+ printf( " ---\n" );
+ printf( " iterations: %d\n", iterations );
+ printf( " elapsed: %0.9f\n", elapsed );
+ printf( " rate: %0.9f\n", rate );
+ printf( " ...\n" );
+}
+
+/**
+* Returns a clock time.
+*
+* @return clock time
+*/
+static double tic( void ) {
+ struct timeval now;
+ gettimeofday( &now, NULL );
+ return (double)now.tv_sec + (double)now.tv_usec/1.0e6;
+}
+
+/**
+* Generates a random number on the interval [0,1).
+*
+* @return random number
+*/
+static double rand_double( void ) {
+ int r = rand();
+ return (double)r / ( (double)RAND_MAX + 1.0 );
+}
+
+/**
+* Runs a benchmark.
+*
+* @param iterations number of iterations
+* @param len array length
+* @return elapsed time in seconds
+*/
+static double benchmark1( int iterations, int len ) {
+ double elapsed;
+ double *out;
+ double *x;
+ double t;
+ int C;
+ int i;
+
+ x = (double *) malloc( len * sizeof( double ) );
+ C = ( len * ( len - 1 ) ) / 2; // C(len, 2) for k=2 without replacement
+ out = (double *) malloc( C * 2 * sizeof( double ) );
+ for ( i = 0; i < len; i++ ) {
+ x[ i ] = ( rand_double()*200.0 ) - 100.0;
+ }
+ t = tic();
+ for ( i = 0; i < iterations; i++ ) {
+ stdlib_strided_dcombinations( len, 2, false, x, 1, out, 2 );
+ if ( out[ 0 ] != out[ 0 ] ) {
+ printf( "should not return NaN\n" );
+ break;
+ }
+ }
+ elapsed = tic() - t;
+ if ( out[ 0 ] != out[ 0 ] ) {
+ printf( "should not return NaN\n" );
+ }
+ free( x );
+ free( out );
+ return elapsed;
+}
+
+/**
+* Runs a benchmark.
+*
+* @param iterations number of iterations
+* @param len array length
+* @return elapsed time in seconds
+*/
+static double benchmark2( int iterations, int len ) {
+ double elapsed;
+ double *out;
+ double *x;
+ double t;
+ int C;
+ int i;
+
+ x = (double *) malloc( len * sizeof( double ) );
+ C = ( len * ( len - 1 ) ) / 2; // C(len, 2) for k=2 without replacement
+ out = (double *) malloc( C * 2 * sizeof( double ) );
+ for ( i = 0; i < len; i++ ) {
+ x[ i ] = ( rand_double()*200.0 ) - 100.0;
+ }
+ t = tic();
+ for ( i = 0; i < iterations; i++ ) {
+ stdlib_strided_dcombinations_ndarray( len, 2, false, x, 1, 0, out, 2, 1, 0 );
+ if ( out[ 0 ] != out[ 0 ] ) {
+ printf( "should not return NaN\n" );
+ break;
+ }
+ }
+ elapsed = tic() - t;
+ if ( out[ 0 ] != out[ 0 ] ) {
+ printf( "should not return NaN\n" );
+ }
+ free( x );
+ free( out );
+ return elapsed;
+}
+
+/**
+* Main execution sequence.
+*/
+int main( void ) {
+ double elapsed;
+ int count;
+ int iter;
+ int len;
+ int i;
+ int j;
+
+ // Use the current time to seed the random number generator:
+ srand( time( NULL ) );
+
+ print_version();
+ count = 0;
+ for ( i = MIN; i <= MAX; i++ ) {
+ len = (int) pow( 10, i );
+ iter = ITERATIONS / (int) pow( 10, i-1 );
+ for ( j = 0; j < REPEATS; j++ ) {
+ count += 1;
+ printf( "# c::native::%s:len=%d\n", NAME, len );
+ elapsed = benchmark1( iter, len );
+ print_results( iter, elapsed );
+ printf( "ok %d benchmark finished\n", count );
+ }
+ for ( j = 0; j < REPEATS; j++ ) {
+ count += 1;
+ printf( "# c::native::%s:ndarray:len=%d\n", NAME, len );
+ elapsed = benchmark2( iter, len );
+ print_results( iter, elapsed );
+ printf( "ok %d benchmark finished\n", count );
+ }
+ }
+ print_summary( count, count );
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dcombinations/binding.gyp b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/binding.gyp
new file mode 100644
index 000000000000..dd2c42a8afd6
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/binding.gyp
@@ -0,0 +1,133 @@
+# @license Apache-2.0
+#
+# Copyright (c) 2026 The Stdlib Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# A `.gyp` file for building a Node.js native add-on.
+#
+# [1]: https://gyp.gsrc.io/docs/InputFormatReference.md
+# [2]: https://gyp.gsrc.io/docs/UserDocumentation.md
+{
+ 'includes': [
+ './include.gypi',
+ ],
+
+ 'variables': {
+ 'addon_target_name%': 'addon',
+
+ 'conditions': [
+ [
+ 'OS=="win"',
+ {
+ 'obj': 'obj',
+ },
+ {
+ 'obj': 'o',
+ }
+ ],
+ ],
+ },
+
+ 'targets': [
+
+ {
+ 'target_name': '<(addon_target_name)',
+
+ 'dependencies': [],
+
+ 'include_dirs': [
+ '<@(include_dirs)',
+ ],
+
+ 'sources': [
+ '<@(src_files)',
+ ],
+
+ 'link_settings': {
+ 'libraries': [
+ '<@(libraries)',
+ ],
+
+ 'library_dirs': [
+ '<@(library_dirs)',
+ ],
+ },
+
+ 'cflags': [
+ '-Wall',
+ '-O3',
+ ],
+
+ 'cflags_c': [
+ '-std=c99',
+ ],
+
+ 'cflags_cpp': [
+ '-std=c++11',
+ ],
+
+ 'ldflags': [],
+
+ 'conditions': [
+ [
+ 'OS=="mac"',
+ {
+ 'ldflags': [
+ '-undefined dynamic_lookup',
+ '-Wl,-no-pie',
+ '-Wl,-search_paths_first',
+ ],
+ },
+ ],
+ [
+ 'OS!="win"',
+ {
+ 'cflags': [
+ '-fPIC',
+ ],
+ },
+ ],
+ ],
+ },
+
+ {
+ 'target_name': 'copy_addon',
+
+ 'type': 'none',
+
+ 'dependencies': [
+ '<(addon_target_name)',
+ ],
+
+ 'actions': [
+ {
+ 'action_name': 'copy_addon',
+ 'message': 'Copying addon...',
+
+ 'inputs': [],
+
+ 'outputs': [
+ '<(addon_output_dir)/<(addon_target_name).node',
+ ],
+
+ 'action': [
+ 'cp',
+ '<(PRODUCT_DIR)/<(addon_target_name).node',
+ '<(addon_output_dir)/<(addon_target_name).node',
+ ],
+ },
+ ],
+ },
+ ],
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dcombinations/docs/repl.txt b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/docs/repl.txt
new file mode 100644
index 000000000000..c39772e2e8eb
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/docs/repl.txt
@@ -0,0 +1,107 @@
+
+{{alias}}( N, k, replacement, x, strideX, out, LDO )
+ Computes combinations of a specified length from double-precision
+ floating-point strided array elements.
+
+ The `N` and stride parameters determine which elements in the strided array
+ are accessed at runtime.
+
+ Indexing is relative to the first index. To introduce an offset, use typed
+ array views.
+
+ If `N <= 0` or `k <= 0`, the function returns the output array unchanged.
+
+ If `replacement` is `false` and `k > N`, the function returns the output
+ array unchanged.
+
+ Parameters
+ ----------
+ N: integer
+ Number of indexed elements.
+
+ k: integer
+ Number of elements to combine.
+
+ replacement: boolean
+ Boolean indicating whether to allow duplication in combination.
+
+ x: Float64Array
+ Input array.
+
+ strideX: integer
+ Stride length.
+
+ out: Float64Array
+ Output array.
+
+ LDO: integer
+ Stride length for the leading dimension of `out`.
+
+ Returns
+ -------
+ out: Float64Array
+ Output array.
+
+ Examples
+ --------
+ > var x = new {{alias:@stdlib/array/float64}}( [ 1.0, 2.0, 3.0, 4.0 ] );
+ > var out = new {{alias:@stdlib/array/float64}}( 12 );
+ > {{alias}}( 4, 2, false, x, 1, out, 2 )
+ [ 1.0, 2.0, 1.0, 3.0, 1.0, 4.0, 2.0, 3.0, 2.0, 4.0, 3.0, 4.0 ]
+
+
+{{alias}}.ndarray( N, k, replacement, x, strideX, offsetX, out, so1, so2, oo )
+ Computes combinations of a specified length from double-precision
+ floating-point strided array elements using alternative indexing semantics.
+
+ While typed array views mandate a view offset based on the underlying
+ buffer, the offset parameters support indexing semantics based on a
+ starting index.
+
+ Parameters
+ ----------
+ N: integer
+ Number of indexed elements.
+
+ k: integer
+ Number of elements to combine.
+
+ replacement: boolean
+ Boolean indicating whether to allow duplication in combination.
+
+ x: Float64Array
+ Input array.
+
+ strideX: integer
+ Stride length.
+
+ offsetX: integer
+ Starting index.
+
+ out: Float64Array
+ Output array.
+
+ so1: integer
+ Stride length of the first dimension of `out`.
+
+ so2: integer
+ Stride length of the second dimension of `out`.
+
+ oo: integer
+ Starting index.
+
+ Returns
+ -------
+ out: Float64Array
+ Output array.
+
+ Examples
+ --------
+ > var x = new {{alias:@stdlib/array/float64}}( [ 1.0, 2.0, 3.0, 4.0 ] );
+ > var out = new {{alias:@stdlib/array/float64}}( 12 );
+ > {{alias}}.ndarray( 4, 2, false, x, 1, 0, out, 2, 1, 0 )
+ [ 1.0, 2.0, 1.0, 3.0, 1.0, 4.0, 2.0, 3.0, 2.0, 4.0, 3.0, 4.0 ]
+
+ See Also
+ --------
+
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dcombinations/docs/types/index.d.ts b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/docs/types/index.d.ts
new file mode 100644
index 000000000000..596af5d3fb84
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/docs/types/index.d.ts
@@ -0,0 +1,110 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+// TypeScript Version: 4.1
+
+/**
+* Interface describing `dcombinations`.
+*/
+interface Routine {
+ /**
+ * Computes combinations of a specified length from double-precision floating-point strided array elements.
+ *
+ * @param N - number of indexed elements
+ * @param k - number of elements to combine
+ * @param replacement - boolean indicating whether to allow duplication in combination
+ * @param x - input array
+ * @param strideX - stride length for `x`
+ * @param out - output array
+ * @param LDO - stride length for the leading dimension of `out`
+ * @returns output array
+ *
+ * @example
+ * var Float64Array = require( `@stdlib/array/float64` );
+ *
+ * var x = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+ * var out = new Float64Array( 12 );
+ *
+ * dcombinations( 4, 2, false, x, 1, out, 2 );
+ * // out => [ 1.0, 2.0, 1.0, 3.0, 1.0, 4.0, 2.0, 3.0, 2.0, 4.0, 3.0, 4.0 ]
+ */
+ ( N: number, k: number, replacement: boolean, x: Float64Array, strideX: number, out: Float64Array, LDO: number ): Float64Array;
+
+ /**
+ * Computes combinations of a specified length from double-precision floating-point strided array elements using alternative indexing semantics.
+ *
+ * @param N - number of indexed elements
+ * @param k - number of elements to combine
+ * @param replacement - boolean indicating whether to allow duplication in combination
+ * @param x - input array
+ * @param strideX - stride length for `x`
+ * @param offsetX - starting index for `x`
+ * @param out - output array
+ * @param strideOut1 - stride length for the first dimension of `out`
+ * @param strideOut2 - stride length for the second dimension of `out`
+ * @param offsetOut - starting index for `out`
+ * @returns output array
+ *
+ * @example
+ * var Float64Array = require( `@stdlib/array/float64` );
+ *
+ * var x = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+ * var out = new Float64Array( 12 );
+ *
+ * dcombinations.ndarray( 4, 2, false, x, 1, 0, out, 2, 1, 0 );
+ * // out => [ 1.0, 2.0, 1.0, 3.0, 1.0, 4.0, 2.0, 3.0, 2.0, 4.0, 3.0, 4.0 ]
+ */
+ ndarray( N: number, k: number, replacement: boolean, x: Float64Array, strideX: number, offsetX: number, out: Float64Array, strideOut1: number, strideOut2: number, offsetOut: number ): Float64Array;
+}
+
+/**
+* Computes combinations of a specified length from double-precision floating-point strided array elements.
+*
+* @param N - number of indexed elements
+* @param k - number of elements to combine
+* @param replacement - boolean indicating whether to allow duplication in combination
+* @param x - input array
+* @param strideX - stride length for `x`
+* @param out - output array
+* @param LDO - stride length for the leading dimension of `out`
+* @returns output array
+*
+* @example
+* var Float64Array = require( `@stdlib/array/float64` );
+*
+* var x = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+* var out = new Float64Array( 12 );
+*
+* dcombinations( 4, 2, false, x, 1, out, 2 );
+* // out => [ 1.0, 2.0, 1.0, 3.0, 1.0, 4.0, 2.0, 3.0, 2.0, 4.0, 3.0, 4.0 ]
+*
+* @example
+* var Float64Array = require( `@stdlib/array/float64` );
+*
+* var x = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+* var out = new Float64Array( 12 );
+*
+* dcombinations.ndarray( 4, 2, false, x, 1, 0, out, 2, 1, 0 );
+* // out => [ 1.0, 2.0, 1.0, 3.0, 1.0, 4.0, 2.0, 3.0, 2.0, 4.0, 3.0, 4.0 ]
+*/
+declare var dcombinations: Routine;
+
+
+// EXPORTS //
+
+export = dcombinations;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dcombinations/docs/types/test.ts b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/docs/types/test.ts
new file mode 100644
index 000000000000..5844eb235bc5
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/docs/types/test.ts
@@ -0,0 +1,324 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+import dcombinations = require( './index' );
+
+
+// TESTS //
+
+// The function returns a Float64Array...
+{
+ const x = new Float64Array( 4 );
+ const out = new Float64Array( 12 );
+
+ dcombinations( x.length, 2, false, x, 1, out, 2 ); // $ExpectType Float64Array
+}
+
+// The compiler throws an error if the function is provided a first argument which is not a number...
+{
+ const x = new Float64Array( 4 );
+ const out = new Float64Array( 12 );
+
+ dcombinations( '10', 2, false, x, 1, out, 2 ); // $ExpectError
+ dcombinations( true, 2, false, x, 1, out, 2 ); // $ExpectError
+ dcombinations( false, 2, false, x, 1, out, 2 ); // $ExpectError
+ dcombinations( null, 2, false, x, 1, out, 2 ); // $ExpectError
+ dcombinations( undefined, 2, false, x, 1, out, 2 ); // $ExpectError
+ dcombinations( [], 2, false, x, 1, out, 2 ); // $ExpectError
+ dcombinations( {}, 2, false, x, 1, out, 2 ); // $ExpectError
+ dcombinations( ( x: number ): number => x, 2, false, x, 1, out, 2 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a second argument which is not a number...
+{
+ const x = new Float64Array( 4 );
+ const out = new Float64Array( 12 );
+
+ dcombinations( x.length, '10', false, x, 1, out, 2 ); // $ExpectError
+ dcombinations( x.length, true, false, x, 1, out, 2 ); // $ExpectError
+ dcombinations( x.length, false, false, x, 1, out, 2 ); // $ExpectError
+ dcombinations( x.length, null, false, x, 1, out, 2 ); // $ExpectError
+ dcombinations( x.length, undefined, false, x, 1, out, 2 ); // $ExpectError
+ dcombinations( x.length, [], false, x, 1, out, 2 ); // $ExpectError
+ dcombinations( x.length, {}, false, x, 1, out, 2 ); // $ExpectError
+ dcombinations( x.length, ( x: number ): number => x, false, x, 1, out, 2 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a third argument which is not a boolean...
+{
+ const x = new Float64Array( 4 );
+ const out = new Float64Array( 12 );
+
+ dcombinations( x.length, 2, '10', x, 1, out, 2 ); // $ExpectError
+ dcombinations( x.length, 2, 10, x, 1, out, 2 ); // $ExpectError
+ dcombinations( x.length, 2, null, x, 1, out, 2 ); // $ExpectError
+ dcombinations( x.length, 2, undefined, x, 1, out, 2 ); // $ExpectError
+ dcombinations( x.length, 2, [], x, 1, out, 2 ); // $ExpectError
+ dcombinations( x.length, 2, {}, x, 1, out, 2 ); // $ExpectError
+ dcombinations( x.length, 2, ( x: number ): number => x, x, 1, out, 2 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a fourth argument which is not a Float64Array...
+{
+ const out = new Float64Array( 12 );
+
+ dcombinations( 4, 2, false, 10, 1, out, 2 ); // $ExpectError
+ dcombinations( 4, 2, false, '10', 1, out, 2 ); // $ExpectError
+ dcombinations( 4, 2, false, true, 1, out, 2 ); // $ExpectError
+ dcombinations( 4, 2, false, false, 1, out, 2 ); // $ExpectError
+ dcombinations( 4, 2, false, null, 1, out, 2 ); // $ExpectError
+ dcombinations( 4, 2, false, undefined, 1, out, 2 ); // $ExpectError
+ dcombinations( 4, 2, false, [], 1, out, 2 ); // $ExpectError
+ dcombinations( 4, 2, false, {}, 1, out, 2 ); // $ExpectError
+ dcombinations( 4, 2, false, ( x: number ): number => x, 1, out, 2 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a fifth argument which is not a number...
+{
+ const x = new Float64Array( 4 );
+ const out = new Float64Array( 12 );
+
+ dcombinations( x.length, 2, false, x, '10', out, 2 ); // $ExpectError
+ dcombinations( x.length, 2, false, x, true, out, 2 ); // $ExpectError
+ dcombinations( x.length, 2, false, x, false, out, 2 ); // $ExpectError
+ dcombinations( x.length, 2, false, x, null, out, 2 ); // $ExpectError
+ dcombinations( x.length, 2, false, x, undefined, out, 2 ); // $ExpectError
+ dcombinations( x.length, 2, false, x, [], out, 2 ); // $ExpectError
+ dcombinations( x.length, 2, false, x, {}, out, 2 ); // $ExpectError
+ dcombinations( x.length, 2, false, x, ( x: number ): number => x, out, 2 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a sixth argument which is not a Float64Array...
+{
+ const x = new Float64Array( 4 );
+
+ dcombinations( x.length, 2, false, x, 1, 10, 2 ); // $ExpectError
+ dcombinations( x.length, 2, false, x, 1, '10', 2 ); // $ExpectError
+ dcombinations( x.length, 2, false, x, 1, true, 2 ); // $ExpectError
+ dcombinations( x.length, 2, false, x, 1, false, 2 ); // $ExpectError
+ dcombinations( x.length, 2, false, x, 1, null, 2 ); // $ExpectError
+ dcombinations( x.length, 2, false, x, 1, undefined, 2 ); // $ExpectError
+ dcombinations( x.length, 2, false, x, 1, [], 2 ); // $ExpectError
+ dcombinations( x.length, 2, false, x, 1, {}, 2 ); // $ExpectError
+ dcombinations( x.length, 2, false, x, 1, ( x: number ): number => x, 2 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a seventh argument which is not a number...
+{
+ const x = new Float64Array( 4 );
+ const out = new Float64Array( 12 );
+
+ dcombinations( x.length, 2, false, x, 1, out, '10' ); // $ExpectError
+ dcombinations( x.length, 2, false, x, 1, out, true ); // $ExpectError
+ dcombinations( x.length, 2, false, x, 1, out, false ); // $ExpectError
+ dcombinations( x.length, 2, false, x, 1, out, null ); // $ExpectError
+ dcombinations( x.length, 2, false, x, 1, out, undefined ); // $ExpectError
+ dcombinations( x.length, 2, false, x, 1, out, [] ); // $ExpectError
+ dcombinations( x.length, 2, false, x, 1, out, {} ); // $ExpectError
+ dcombinations( x.length, 2, false, x, 1, out, ( x: number ): number => x ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided an unsupported number of arguments...
+{
+ const x = new Float64Array( 4 );
+ const out = new Float64Array( 12 );
+
+ dcombinations(); // $ExpectError
+ dcombinations( x.length ); // $ExpectError
+ dcombinations( x.length, 2 ); // $ExpectError
+ dcombinations( x.length, 2, false ); // $ExpectError
+ dcombinations( x.length, 2, false, x ); // $ExpectError
+ dcombinations( x.length, 2, false, x, 1 ); // $ExpectError
+ dcombinations( x.length, 2, false, x, 1, out ); // $ExpectError
+ dcombinations( x.length, 2, false, x, 1, out, 2, 1 ); // $ExpectError
+}
+
+// Attached to main export is an `ndarray` method which returns a Float64Array...
+{
+ const x = new Float64Array( 4 );
+ const out = new Float64Array( 12 );
+
+ dcombinations.ndarray( x.length, 2, false, x, 1, 0, out, 2, 1, 0 ); // $ExpectType Float64Array
+}
+
+// The compiler throws an error if the `ndarray` method is provided a first argument which is not a number...
+{
+ const x = new Float64Array( 4 );
+ const out = new Float64Array( 12 );
+
+ dcombinations.ndarray( '10', 2, false, x, 1, 0, out, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( true, 2, false, x, 1, 0, out, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( false, 2, false, x, 1, 0, out, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( null, 2, false, x, 1, 0, out, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( undefined, 2, false, x, 1, 0, out, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( [], 2, false, x, 1, 0, out, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( {}, 2, false, x, 1, 0, out, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( ( x: number ): number => x, 2, false, x, 1, 0, out, 2, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a second argument which is not a number...
+{
+ const x = new Float64Array( 4 );
+ const out = new Float64Array( 12 );
+
+ dcombinations.ndarray( x.length, '10', false, x, 1, 0, out, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, true, false, x, 1, 0, out, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, false, false, x, 1, 0, out, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, null, false, x, 1, 0, out, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, undefined, false, x, 1, 0, out, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, [], false, x, 1, 0, out, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, {}, false, x, 1, 0, out, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, ( x: number ): number => x, false, x, 1, 0, out, 2, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a third argument which is not a boolean...
+{
+ const x = new Float64Array( 4 );
+ const out = new Float64Array( 12 );
+
+ dcombinations.ndarray( x.length, 2, '10', x, 1, 0, out, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, 10, x, 1, 0, out, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, null, x, 1, 0, out, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, undefined, x, 1, 0, out, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, [], x, 1, 0, out, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, {}, x, 1, 0, out, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, ( x: number ): number => x, x, 1, 0, out, 2, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a fourth argument which is not a Float64Array...
+{
+ const out = new Float64Array( 12 );
+
+ dcombinations.ndarray( 4, 2, false, 10, 1, 0, out, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( 4, 2, false, '10', 1, 0, out, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( 4, 2, false, true, 1, 0, out, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( 4, 2, false, false, 1, 0, out, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( 4, 2, false, null, 1, 0, out, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( 4, 2, false, undefined, 1, 0, out, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( 4, 2, false, [], 1, 0, out, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( 4, 2, false, {}, 1, 0, out, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( 4, 2, false, ( x: number ): number => x, 1, 0, out, 2, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a fifth argument which is not a number...
+{
+ const x = new Float64Array( 4 );
+ const out = new Float64Array( 12 );
+
+ dcombinations.ndarray( x.length, 2, false, x, '10', 0, out, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, true, 0, out, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, false, 0, out, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, null, 0, out, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, undefined, 0, out, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, [], 0, out, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, {}, 0, out, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, ( x: number ): number => x, 0, out, 2, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a sixth argument which is not a number...
+{
+ const x = new Float64Array( 4 );
+ const out = new Float64Array( 12 );
+
+ dcombinations.ndarray( x.length, 2, false, x, 1, '10', out, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, 1, true, out, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, 1, false, out, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, 1, null, out, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, 1, undefined, out, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, 1, [], out, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, 1, {}, out, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, 1, ( x: number ): number => x, out, 2, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a seventh argument which is not a Float64Array...
+{
+ const x = new Float64Array( 4 );
+
+ dcombinations.ndarray( x.length, 2, false, x, 1, 0, 10, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, 1, 0, '10', 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, 1, 0, true, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, 1, 0, false, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, 1, 0, null, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, 1, 0, undefined, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, 1, 0, [], 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, 1, 0, {}, 2, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, 1, 0, ( x: number ): number => x, 2, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided an eighth argument which is not a number...
+{
+ const x = new Float64Array( 4 );
+ const out = new Float64Array( 12 );
+
+ dcombinations.ndarray( x.length, 2, false, x, 1, 0, out, '10', 1, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, 1, 0, out, true, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, 1, 0, out, false, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, 1, 0, out, null, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, 1, 0, out, undefined, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, 1, 0, out, [], 1, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, 1, 0, out, {}, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, 1, 0, out, ( x: number ): number => x, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a ninth argument which is not a number...
+{
+ const x = new Float64Array( 4 );
+ const out = new Float64Array( 12 );
+
+ dcombinations.ndarray( x.length, 2, false, x, 1, 0, out, 2, '10', 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, 1, 0, out, 2, true, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, 1, 0, out, 2, false, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, 1, 0, out, 2, null, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, 1, 0, out, 2, undefined, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, 1, 0, out, 2, [], 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, 1, 0, out, 2, {}, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, 1, 0, out, 2, ( x: number ): number => x, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a tenth argument which is not a number...
+{
+ const x = new Float64Array( 4 );
+ const out = new Float64Array( 12 );
+
+ dcombinations.ndarray( x.length, 2, false, x, 1, 0, out, 2, 1, '10' ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, 1, 0, out, 2, 1, true ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, 1, 0, out, 2, 1, false ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, 1, 0, out, 2, 1, null ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, 1, 0, out, 2, 1, undefined ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, 1, 0, out, 2, 1, [] ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, 1, 0, out, 2, 1, {} ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, 1, 0, out, 2, 1, ( x: number ): number => x ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided an unsupported number of arguments...
+{
+ const x = new Float64Array( 4 );
+ const out = new Float64Array( 12 );
+
+ dcombinations.ndarray(); // $ExpectError
+ dcombinations.ndarray( x.length ); // $ExpectError
+ dcombinations.ndarray( x.length, 2 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, 1 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, 1, 0 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, 1, 0, out ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, 1, 0, out, 2 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, 1, 0, out, 2, 1 ); // $ExpectError
+ dcombinations.ndarray( x.length, 2, false, x, 1, 0, out, 2, 1, 0, 10 ); // $ExpectError
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dcombinations/examples/c/Makefile b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/examples/c/Makefile
new file mode 100644
index 000000000000..c8f8e9a1517b
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/examples/c/Makefile
@@ -0,0 +1,146 @@
+#/
+# @license Apache-2.0
+#
+# Copyright (c) 2026 The Stdlib Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#/
+
+# VARIABLES #
+
+ifndef VERBOSE
+ QUIET := @
+else
+ QUIET :=
+endif
+
+# Determine the OS ([1][1], [2][2]).
+#
+# [1]: https://en.wikipedia.org/wiki/Uname#Examples
+# [2]: http://stackoverflow.com/a/27776822/2225624
+OS ?= $(shell uname)
+ifneq (, $(findstring MINGW,$(OS)))
+ OS := WINNT
+else
+ifneq (, $(findstring MSYS,$(OS)))
+ OS := WINNT
+else
+ifneq (, $(findstring CYGWIN,$(OS)))
+ OS := WINNT
+else
+ifneq (, $(findstring Windows_NT,$(OS)))
+ OS := WINNT
+endif
+endif
+endif
+endif
+
+# Define the program used for compiling C source files:
+ifdef C_COMPILER
+ CC := $(C_COMPILER)
+else
+ CC := gcc
+endif
+
+# Define the command-line options when compiling C files:
+CFLAGS ?= \
+ -std=c99 \
+ -O3 \
+ -Wall \
+ -pedantic
+
+# Determine whether to generate position independent code ([1][1], [2][2]).
+#
+# [1]: https://gcc.gnu.org/onlinedocs/gcc/Code-Gen-Options.html#Code-Gen-Options
+# [2]: http://stackoverflow.com/questions/5311515/gcc-fpic-option
+ifeq ($(OS), WINNT)
+ fPIC ?=
+else
+ fPIC ?= -fPIC
+endif
+
+# List of includes (e.g., `-I /foo/bar -I /beep/boop/include`):
+INCLUDE ?=
+
+# List of source files:
+SOURCE_FILES ?=
+
+# List of libraries (e.g., `-lopenblas -lpthread`):
+LIBRARIES ?=
+
+# List of library paths (e.g., `-L /foo/bar -L /beep/boop`):
+LIBPATH ?=
+
+# List of C targets:
+c_targets := example.out
+
+
+# RULES #
+
+#/
+# Compiles source files.
+#
+# @param {string} [C_COMPILER] - C compiler (e.g., `gcc`)
+# @param {string} [CFLAGS] - C compiler options
+# @param {(string|void)} [fPIC] - compiler flag determining whether to generate position independent code (e.g., `-fPIC`)
+# @param {string} [INCLUDE] - list of includes (e.g., `-I /foo/bar -I /beep/boop/include`)
+# @param {string} [SOURCE_FILES] - list of source files
+# @param {string} [LIBPATH] - list of library paths (e.g., `-L /foo/bar -L /beep/boop`)
+# @param {string} [LIBRARIES] - list of libraries (e.g., `-lopenblas -lpthread`)
+#
+# @example
+# make
+#
+# @example
+# make all
+#/
+all: $(c_targets)
+
+.PHONY: all
+
+#/
+# Compiles C source files.
+#
+# @private
+# @param {string} CC - C compiler (e.g., `gcc`)
+# @param {string} CFLAGS - C compiler options
+# @param {(string|void)} fPIC - compiler flag determining whether to generate position independent code (e.g., `-fPIC`)
+# @param {string} INCLUDE - list of includes (e.g., `-I /foo/bar`)
+# @param {string} SOURCE_FILES - list of source files
+# @param {string} LIBPATH - list of library paths (e.g., `-L /foo/bar`)
+# @param {string} LIBRARIES - list of libraries (e.g., `-lopenblas`)
+#/
+$(c_targets): %.out: %.c
+ $(QUIET) $(CC) $(CFLAGS) $(fPIC) $(INCLUDE) -o $@ $(SOURCE_FILES) $< $(LIBPATH) -lm $(LIBRARIES)
+
+#/
+# Runs compiled examples.
+#
+# @example
+# make run
+#/
+run: $(c_targets)
+ $(QUIET) ./$<
+
+.PHONY: run
+
+#/
+# Removes generated files.
+#
+# @example
+# make clean
+#/
+clean:
+ $(QUIET) -rm -f *.o *.out
+
+.PHONY: clean
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dcombinations/examples/c/example.c b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/examples/c/example.c
new file mode 100644
index 000000000000..184300e358d5
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/examples/c/example.c
@@ -0,0 +1,38 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#include "stdlib/blas/ext/base/dcombinations.h"
+#include
+#include
+
+int main( void ) {
+ // Create a strided array:
+ double x[] = { 1.0, 2.0, 3.0, 4.0 };
+
+ // Create an output array:
+ double out[] = { 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 };
+
+ // Compute combinations:
+ stdlib_strided_dcombinations( 4, 2, false, x, 1, out, 2 );
+
+ // Print each combination:
+ printf( "Without replacement:\n" );
+ for ( int i = 0; i < 6; i++ ) {
+ printf( " [ %lf, %lf ]\n", out[ i*2 ], out[ (i*2)+1 ] );
+ }
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dcombinations/examples/index.js b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/examples/index.js
new file mode 100644
index 000000000000..19cf877d7cf2
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/examples/index.js
@@ -0,0 +1,37 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+var discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
+var Float64Array = require( '@stdlib/array/float64' );
+var dcombinations = require( './../lib' );
+
+var N = 5;
+var k = 2;
+
+var x = discreteUniform( N, 1, 10, {
+ 'dtype': 'float64'
+});
+console.log( x );
+
+var out = new Float64Array( 20 );
+console.log( out );
+
+dcombinations( N, k, false, x, 1, out, 2 );
+console.log( out );
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dcombinations/include.gypi b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/include.gypi
new file mode 100644
index 000000000000..bee8d41a2caf
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/include.gypi
@@ -0,0 +1,53 @@
+# @license Apache-2.0
+#
+# Copyright (c) 2026 The Stdlib Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# A GYP include file for building a Node.js native add-on.
+#
+# Main documentation:
+#
+# [1]: https://gyp.gsrc.io/docs/InputFormatReference.md
+# [2]: https://gyp.gsrc.io/docs/UserDocumentation.md
+{
+ # Define variables to be used throughout the configuration for all targets:
+ 'variables': {
+ # Source directory:
+ 'src_dir': './src',
+
+ # Include directories:
+ 'include_dirs': [
+ '
+
+/*
+* If C++, prevent name mangling so that the compiler emits a binary file having undecorated names, thus mirroring the behavior of a C compiler.
+*/
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+* Computes combinations of a specified length from double-precision floating-point strided array elements.
+*/
+void API_SUFFIX(stdlib_strided_dcombinations)( const CBLAS_INT N, const CBLAS_INT k, const bool replacement, const double *X, const CBLAS_INT strideX, double *Out, const CBLAS_INT LDO );
+
+/**
+* Computes combinations of a specified length from double-precision floating-point strided array elements using alternative indexing semantics.
+*/
+void API_SUFFIX(stdlib_strided_dcombinations_ndarray)( const CBLAS_INT N, const CBLAS_INT k, const bool replacement, const double *X, const CBLAS_INT strideX, const CBLAS_INT offsetX, double *Out, const CBLAS_INT strideOut1, const CBLAS_INT strideOut2, const CBLAS_INT offsetOut );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // !STDLIB_BLAS_EXT_BASE_DCOMBINATIONS_H
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dcombinations/lib/dcombinations.js b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/lib/dcombinations.js
new file mode 100644
index 000000000000..73cf221ed482
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/lib/dcombinations.js
@@ -0,0 +1,69 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var stride2offset = require( '@stdlib/strided/base/stride2offset' );
+var binomcoef = require( '@stdlib/math/base/special/binomcoef' );
+var ndarray = require( './ndarray.js' );
+
+
+// MAIN //
+
+/**
+* Computes combinations of a specified length from double-precision floating-point strided array elements.
+*
+* @param {NonNegativeInteger} N - number of indexed elements
+* @param {NonNegativeInteger} k - number of elements to combine
+* @param {boolean} replacement - boolean indicating whether to allow duplication in combination
+* @param {Float64Array} x - input array
+* @param {integer} strideX - stride length for `x`
+* @param {Float64Array} out - output array
+* @param {integer} LDO - stride length for the leading dimension of `out`
+* @returns {Float64Array} output array
+*
+* @example
+* var Float64Array = require( '@stdlib/array/float64' );
+*
+* var x = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+* var out = new Float64Array( 12 );
+*
+* dcombinations( 4, 2, false, x, 1, out, 2 );
+* // out => [ 1.0, 2.0, 1.0, 3.0, 1.0, 4.0, 2.0, 3.0, 2.0, 4.0, 3.0, 4.0 ]
+*/
+function dcombinations( N, k, replacement, x, strideX, out, LDO ) {
+ var ox;
+ var oo;
+ var C;
+
+ if ( replacement ) {
+ C = binomcoef( N + k - 1, k );
+ } else {
+ C = binomcoef( N, k );
+ }
+ ox = stride2offset( N, strideX );
+ oo = stride2offset( C, LDO );
+ return ndarray( N, k, replacement, x, strideX, ox, out, LDO, 1, oo );
+}
+
+
+// EXPORTS //
+
+module.exports = dcombinations;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dcombinations/lib/dcombinations.native.js b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/lib/dcombinations.native.js
new file mode 100644
index 000000000000..03e7d7bff223
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/lib/dcombinations.native.js
@@ -0,0 +1,57 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var addon = require( './../src/addon.node' );
+
+
+// MAIN //
+
+/**
+* Computes combinations of a specified length from double-precision floating-point strided array elements.
+*
+* @param {NonNegativeInteger} N - number of indexed elements
+* @param {NonNegativeInteger} k - number of elements to combine
+* @param {boolean} replacement - boolean indicating whether to allow duplication in combination
+* @param {Float64Array} x - input array
+* @param {integer} strideX - stride length for `x`
+* @param {Float64Array} out - output array
+* @param {integer} LDO - stride length for the leading dimension of `out`
+* @returns {Float64Array} output array
+*
+* @example
+* var Float64Array = require( '@stdlib/array/float64' );
+*
+* var x = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+* var out = new Float64Array( 12 );
+*
+* dcombinations( 4, 2, false, x, 1, out, 2 );
+* // out => [ 1.0, 2.0, 1.0, 3.0, 1.0, 4.0, 2.0, 3.0, 2.0, 4.0, 3.0, 4.0 ]
+*/
+function dcombinations( N, k, replacement, x, strideX, out, LDO ) {
+ addon( N, k, replacement, x, strideX, out, LDO );
+ return out;
+}
+
+
+// EXPORTS //
+
+module.exports = dcombinations;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dcombinations/lib/index.js b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/lib/index.js
new file mode 100644
index 000000000000..06cae726566a
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/lib/index.js
@@ -0,0 +1,70 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+/**
+* Compute combinations of a specified length from double-precision floating-point strided array elements.
+*
+* @module @stdlib/blas/ext/base/dcombinations
+*
+* @example
+* var Float64Array = require( '@stdlib/array/float64' );
+* var dcombinations = require( '@stdlib/blas/ext/base/dcombinations' );
+*
+* var x = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+* var out = new Float64Array( 12 );
+*
+* dcombinations( 4, 2, false, x, 1, out, 2 );
+* // out => [ 1.0, 2.0, 1.0, 3.0, 1.0, 4.0, 2.0, 3.0, 2.0, 4.0, 3.0, 4.0 ]
+*
+* @example
+* var Float64Array = require( '@stdlib/array/float64' );
+* var dcombinations = require( '@stdlib/blas/ext/base/dcombinations' );
+*
+* var x = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+* var out = new Float64Array( 12 );
+*
+* dcombinations.ndarray( 4, 2, false, x, 1, 0, out, 2, 1, 0 );
+* // out => [ 1.0, 2.0, 1.0, 3.0, 1.0, 4.0, 2.0, 3.0, 2.0, 4.0, 3.0, 4.0 ]
+*/
+
+// MODULES //
+
+var join = require( 'path' ).join;
+var tryRequire = require( '@stdlib/utils/try-require' );
+var isError = require( '@stdlib/assert/is-error' );
+var main = require( './main.js' );
+
+
+// MAIN //
+
+var dcombinations;
+var tmp = tryRequire( join( __dirname, './native.js' ) );
+if ( isError( tmp ) ) {
+ dcombinations = main;
+} else {
+ dcombinations = tmp;
+}
+
+
+// EXPORTS //
+
+module.exports = dcombinations;
+
+// exports: { "ndarray": "dcombinations.ndarray" }
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dcombinations/lib/main.js b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/lib/main.js
new file mode 100644
index 000000000000..56913d14ecbf
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/lib/main.js
@@ -0,0 +1,35 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var setReadOnly = require( '@stdlib/utils/define-nonenumerable-read-only-property' );
+var dcombinations = require( './dcombinations.js' );
+var ndarray = require( './ndarray.js' );
+
+
+// MAIN //
+
+setReadOnly( dcombinations, 'ndarray', ndarray );
+
+
+// EXPORTS //
+
+module.exports = dcombinations;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dcombinations/lib/native.js b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/lib/native.js
new file mode 100644
index 000000000000..66f36d0e6c9d
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/lib/native.js
@@ -0,0 +1,35 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var setReadOnly = require( '@stdlib/utils/define-nonenumerable-read-only-property' );
+var dcombinations = require( './dcombinations.native.js' );
+var ndarray = require( './ndarray.native.js' );
+
+
+// MAIN //
+
+setReadOnly( dcombinations, 'ndarray', ndarray );
+
+
+// EXPORTS //
+
+module.exports = dcombinations;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dcombinations/lib/ndarray.js b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/lib/ndarray.js
new file mode 100644
index 000000000000..4435743eee52
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/lib/ndarray.js
@@ -0,0 +1,127 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var binomcoef = require( '@stdlib/math/base/special/binomcoef' );
+
+
+// MAIN //
+
+/**
+* Computes combinations of a specified length from double-precision floating-point strided array elements using alternative indexing semantics.
+*
+* @param {NonNegativeInteger} N - number of indexed elements
+* @param {NonNegativeInteger} k - number of elements to combine
+* @param {boolean} replacement - boolean indicating whether to allow duplication in combination
+* @param {Float64Array} x - input array
+* @param {integer} strideX - stride length for `x`
+* @param {NonNegativeInteger} offsetX - starting index for `x`
+* @param {Float64Array} out - output array
+* @param {integer} strideOut1 - stride length for the first dimension of `out`
+* @param {integer} strideOut2 - stride length for the second dimension of `out`
+* @param {NonNegativeInteger} offsetOut - starting index for `out`
+* @returns {Float64Array} output array
+*
+* @example
+* var Float64Array = require( '@stdlib/array/float64' );
+*
+* var x = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+* var out = new Float64Array( 12 );
+*
+* dcombinations( 4, 2, false, x, 1, 0, out, 2, 1, 0 );
+* // out => [ 1.0, 2.0, 1.0, 3.0, 1.0, 4.0, 2.0, 3.0, 2.0, 4.0, 3.0, 4.0 ]
+*/
+function dcombinations( N, k, replacement, x, strideX, offsetX, out, strideOut1, strideOut2, offsetOut ) { // eslint-disable-line max-len
+ var indices;
+ var val;
+ var io;
+ var C;
+ var c;
+ var i;
+ var j;
+
+ if ( N <= 0 || k <= 0 ) {
+ return out;
+ }
+ if ( !replacement && k > N ) {
+ return out;
+ }
+
+ // Compute total number of combinations:
+ if ( replacement ) {
+ C = binomcoef( N + k - 1, k );
+ } else {
+ C = binomcoef( N, k );
+ }
+
+ // Initialize combination index array:
+ indices = [];
+ if ( replacement ) {
+ for ( i = 0; i < k; i++ ) {
+ indices[ i ] = 0;
+ }
+ } else {
+ for ( i = 0; i < k; i++ ) {
+ indices[ i ] = i;
+ }
+ }
+ io = offsetOut;
+ for ( c = 0; c < C; c++ ) {
+ // Write current combination to output:
+ for ( j = 0; j < k; j++ ) {
+ out[ io + (j * strideOut2) ] = x[ offsetX + (indices[ j ] * strideX) ]; // eslint-disable-line max-len
+ }
+ io += strideOut1;
+
+ // Advance to next combination:
+ if ( replacement ) {
+ // Find rightmost index that can be incremented:
+ j = k - 1;
+ while ( j >= 0 && indices[ j ] === N - 1 ) {
+ j -= 1;
+ }
+ if ( j >= 0 ) {
+ val = indices[ j ] + 1;
+ for ( i = j; i < k; i++ ) {
+ indices[ i ] = val;
+ }
+ }
+ } else {
+ // Find rightmost index that can be incremented:
+ j = k - 1;
+ while ( j >= 0 && indices[ j ] === N - k + j ) {
+ j -= 1;
+ }
+ if ( j >= 0 ) {
+ indices[ j ] += 1;
+ for ( i = j + 1; i < k; i++ ) {
+ indices[ i ] = indices[ i - 1 ] + 1;
+ }
+ }
+ }
+ }
+ return out;
+}
+
+
+// EXPORTS //
+
+module.exports = dcombinations;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dcombinations/lib/ndarray.native.js b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/lib/ndarray.native.js
new file mode 100644
index 000000000000..64e7a5494114
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/lib/ndarray.native.js
@@ -0,0 +1,62 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+/* eslint-disable max-len */
+
+'use strict';
+
+// MODULES //
+
+var addon = require( './../src/addon.node' );
+
+
+// MAIN //
+
+/**
+* Computes combinations of a specified length from double-precision floating-point strided array elements using alternative indexing semantics.
+*
+* @param {NonNegativeInteger} N - number of indexed elements
+* @param {NonNegativeInteger} k - number of elements to combine
+* @param {boolean} replacement - boolean indicating whether to allow duplication in combination
+* @param {Float64Array} x - input array
+* @param {integer} strideX - stride length for `x`
+* @param {NonNegativeInteger} offsetX - starting index for `x`
+* @param {Float64Array} out - output array
+* @param {integer} strideOut1 - stride length for the first dimension of `out`
+* @param {integer} strideOut2 - stride length for the second dimension of `out`
+* @param {NonNegativeInteger} offsetOut - starting index for `out`
+* @returns {Float64Array} output array
+*
+* @example
+* var Float64Array = require( '@stdlib/array/float64' );
+*
+* var x = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+* var out = new Float64Array( 12 );
+*
+* dcombinations( 4, 2, false, x, 1, 0, out, 2, 1, 0 );
+* // out => [ 1.0, 2.0, 1.0, 3.0, 1.0, 4.0, 2.0, 3.0, 2.0, 4.0, 3.0, 4.0 ]
+*/
+function dcombinations( N, k, replacement, x, strideX, offsetX, out, strideOut1, strideOut2, offsetOut ) {
+ addon.ndarray( N, k, replacement, x, strideX, offsetX, out, strideOut1, strideOut2, offsetOut );
+ return out;
+}
+
+
+// EXPORTS //
+
+module.exports = dcombinations;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dcombinations/manifest.json b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/manifest.json
new file mode 100644
index 000000000000..d6bc99738344
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/manifest.json
@@ -0,0 +1,83 @@
+{
+ "options": {
+ "task": "build"
+ },
+ "fields": [
+ {
+ "field": "src",
+ "resolve": true,
+ "relative": true
+ },
+ {
+ "field": "include",
+ "resolve": true,
+ "relative": true
+ },
+ {
+ "field": "libraries",
+ "resolve": false,
+ "relative": false
+ },
+ {
+ "field": "libpath",
+ "resolve": true,
+ "relative": false
+ }
+ ],
+ "confs": [
+ {
+ "task": "build",
+ "src": [
+ "./src/main.c"
+ ],
+ "include": [
+ "./include"
+ ],
+ "libraries": [],
+ "libpath": [],
+ "dependencies": [
+ "@stdlib/blas/base/shared",
+ "@stdlib/strided/base/stride2offset",
+ "@stdlib/napi/export",
+ "@stdlib/napi/argv",
+ "@stdlib/napi/argv-bool",
+ "@stdlib/napi/argv-int64",
+ "@stdlib/napi/argv-strided-float64array",
+ "@stdlib/napi/argv-strided-float64array2d",
+ "@stdlib/math/base/special/binomcoef"
+ ]
+ },
+ {
+ "task": "benchmark",
+ "src": [
+ "./src/main.c"
+ ],
+ "include": [
+ "./include"
+ ],
+ "libraries": [],
+ "libpath": [],
+ "dependencies": [
+ "@stdlib/blas/base/shared",
+ "@stdlib/strided/base/stride2offset",
+ "@stdlib/math/base/special/binomcoef"
+ ]
+ },
+ {
+ "task": "examples",
+ "src": [
+ "./src/main.c"
+ ],
+ "include": [
+ "./include"
+ ],
+ "libraries": [],
+ "libpath": [],
+ "dependencies": [
+ "@stdlib/blas/base/shared",
+ "@stdlib/strided/base/stride2offset",
+ "@stdlib/math/base/special/binomcoef"
+ ]
+ }
+ ]
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dcombinations/package.json b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/package.json
new file mode 100644
index 000000000000..0f1e2ed2c376
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/package.json
@@ -0,0 +1,74 @@
+{
+ "name": "@stdlib/blas/ext/base/dcombinations",
+ "version": "0.0.0",
+ "description": "Compute combinations of a specified length from double-precision floating-point strided array elements.",
+ "license": "Apache-2.0",
+ "author": {
+ "name": "The Stdlib Authors",
+ "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+ },
+ "contributors": [
+ {
+ "name": "The Stdlib Authors",
+ "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+ }
+ ],
+ "main": "./lib",
+ "browser": "./lib/main.js",
+ "gypfile": true,
+ "directories": {
+ "benchmark": "./benchmark",
+ "doc": "./docs",
+ "example": "./examples",
+ "include": "./include",
+ "lib": "./lib",
+ "src": "./src",
+ "test": "./test"
+ },
+ "types": "./docs/types",
+ "scripts": {},
+ "homepage": "https://github.com/stdlib-js/stdlib",
+ "repository": {
+ "type": "git",
+ "url": "git://github.com/stdlib-js/stdlib.git"
+ },
+ "bugs": {
+ "url": "https://github.com/stdlib-js/stdlib/issues"
+ },
+ "dependencies": {},
+ "devDependencies": {},
+ "engines": {
+ "node": ">=0.10.0",
+ "npm": ">2.7.0"
+ },
+ "os": [
+ "aix",
+ "darwin",
+ "freebsd",
+ "linux",
+ "macos",
+ "openbsd",
+ "sunos",
+ "win32",
+ "windows"
+ ],
+ "keywords": [
+ "stdlib",
+ "stdmath",
+ "mathematics",
+ "math",
+ "blas",
+ "extended",
+ "combinations",
+ "combinatorics",
+ "strided",
+ "array",
+ "ndarray",
+ "float64",
+ "double",
+ "float64array"
+ ],
+ "__stdlib__": {
+ "wasm": false
+ }
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dcombinations/src/Makefile b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/src/Makefile
new file mode 100644
index 000000000000..2caf905cedbe
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/src/Makefile
@@ -0,0 +1,70 @@
+#/
+# @license Apache-2.0
+#
+# Copyright (c) 2026 The Stdlib Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#/
+
+# VARIABLES #
+
+ifndef VERBOSE
+ QUIET := @
+else
+ QUIET :=
+endif
+
+# Determine the OS ([1][1], [2][2]).
+#
+# [1]: https://en.wikipedia.org/wiki/Uname#Examples
+# [2]: http://stackoverflow.com/a/27776822/2225624
+OS ?= $(shell uname)
+ifneq (, $(findstring MINGW,$(OS)))
+ OS := WINNT
+else
+ifneq (, $(findstring MSYS,$(OS)))
+ OS := WINNT
+else
+ifneq (, $(findstring CYGWIN,$(OS)))
+ OS := WINNT
+else
+ifneq (, $(findstring Windows_NT,$(OS)))
+ OS := WINNT
+endif
+endif
+endif
+endif
+
+
+# RULES #
+
+#/
+# Removes generated files for building an add-on.
+#
+# @example
+# make clean-addon
+#/
+clean-addon:
+ $(QUIET) -rm -f *.o *.node
+
+.PHONY: clean-addon
+
+#/
+# Removes generated files.
+#
+# @example
+# make clean
+#/
+clean: clean-addon
+
+.PHONY: clean
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dcombinations/src/addon.c b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/src/addon.c
new file mode 100644
index 000000000000..461085cebfb0
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/src/addon.c
@@ -0,0 +1,96 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#include "stdlib/blas/ext/base/dcombinations.h"
+#include "stdlib/blas/base/shared.h"
+#include "stdlib/napi/export.h"
+#include "stdlib/napi/argv.h"
+#include "stdlib/napi/argv_int64.h"
+#include "stdlib/napi/argv_bool.h"
+#include "stdlib/napi/argv_strided_float64array.h"
+#include "stdlib/napi/argv_strided_float64array2d.h"
+#include "stdlib/math/base/special/binomcoef.h"
+#include
+#include
+#include
+
+
+// MAIN //
+
+/**
+* Receives JavaScript callback invocation data.
+*
+* @param env environment under which the function is invoked
+* @param info callback data
+* @return Node-API value
+*/
+static napi_value addon( napi_env env, napi_callback_info info ) {
+ STDLIB_NAPI_ARGV( env, info, argv, argc, 7 );
+ STDLIB_NAPI_ARGV_INT64( env, N, argv, 0 );
+ STDLIB_NAPI_ARGV_INT64( env, k, argv, 1 );
+ STDLIB_NAPI_ARGV_BOOL( env, replacement, argv, 2 );
+ STDLIB_NAPI_ARGV_INT64( env, strideX, argv, 4 );
+ STDLIB_NAPI_ARGV_INT64( env, LDO, argv, 6 );
+
+ int64_t C = 0;
+ if ( replacement ) {
+ C = stdlib_base_binomcoef( N+k-1, k );
+ } else {
+ C = stdlib_base_binomcoef( N, k );
+ }
+
+ STDLIB_NAPI_ARGV_STRIDED_FLOAT64ARRAY( env, X, N, strideX, argv, 3 );
+ STDLIB_NAPI_ARGV_STRIDED_FLOAT64ARRAY2D( env, Out, C, k, LDO, 1, argv, 5 );
+ API_SUFFIX(stdlib_strided_dcombinations)( N, k, replacement, X, strideX, Out, LDO );
+
+ return NULL;
+}
+
+/**
+* Receives JavaScript callback invocation data.
+*
+* @param env environment under which the function is invoked
+* @param info callback data
+* @return Node-API value
+*/
+static napi_value addon_method( napi_env env, napi_callback_info info ) {
+ STDLIB_NAPI_ARGV( env, info, argv, argc, 10 );
+ STDLIB_NAPI_ARGV_INT64( env, N, argv, 0 );
+ STDLIB_NAPI_ARGV_INT64( env, k, argv, 1 );
+ STDLIB_NAPI_ARGV_BOOL( env, replacement, argv, 2 );
+ STDLIB_NAPI_ARGV_INT64( env, strideX, argv, 4 );
+ STDLIB_NAPI_ARGV_INT64( env, offsetX, argv, 5 );
+ STDLIB_NAPI_ARGV_INT64( env, strideOut1, argv, 7 );
+ STDLIB_NAPI_ARGV_INT64( env, strideOut2, argv, 8 );
+ STDLIB_NAPI_ARGV_INT64( env, offsetOut, argv, 9 );
+
+ int64_t C = 0;
+ if ( replacement ) {
+ C = stdlib_base_binomcoef( N+k-1, k );
+ } else {
+ C = stdlib_base_binomcoef( N, k );
+ }
+
+ STDLIB_NAPI_ARGV_STRIDED_FLOAT64ARRAY( env, X, N, strideX, argv, 3 );
+ STDLIB_NAPI_ARGV_STRIDED_FLOAT64ARRAY2D( env, Out, C, k, strideOut1, strideOut2, argv, 6 );
+ API_SUFFIX(stdlib_strided_dcombinations_ndarray)( N, k, replacement, X, strideX, offsetX, Out, strideOut1, strideOut2, offsetOut );
+
+ return NULL;
+}
+
+STDLIB_NAPI_MODULE_EXPORT_FCN_WITH_METHOD( addon, "ndarray", addon_method )
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dcombinations/src/main.c b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/src/main.c
new file mode 100644
index 000000000000..398ea6874879
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/src/main.c
@@ -0,0 +1,138 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#include "stdlib/blas/ext/base/dcombinations.h"
+#include "stdlib/blas/base/shared.h"
+#include "stdlib/strided/base/stride2offset.h"
+#include "stdlib/math/base/special/binomcoef.h"
+#include
+#include
+
+
+// MAIN //
+
+/**
+* Computes combinations of a specified length from double-precision floating-point strided array elements.
+*
+* @param N number of indexed elements
+* @param k number of elements to combine
+* @param replacement boolean indicating whether to allow duplication in combination
+* @param X input array
+* @param strideX stride length for X
+* @param Out output array
+* @param LDO stride length for the leading dimension of Out
+*/
+void API_SUFFIX(stdlib_strided_dcombinations)( const CBLAS_INT N, const CBLAS_INT k, const bool replacement, const double *X, const CBLAS_INT strideX, double *Out, const CBLAS_INT LDO ) {
+ CBLAS_INT ox;
+ CBLAS_INT oo;
+ int64_t C;
+
+ if ( replacement ) {
+ C = stdlib_base_binomcoef( N + k - 1, k );
+ } else {
+ C = stdlib_base_binomcoef( N, k );
+ }
+ ox = stdlib_strided_stride2offset( N, strideX );
+ oo = stdlib_strided_stride2offset( C, LDO );
+ API_SUFFIX(stdlib_strided_dcombinations_ndarray)( N, k, replacement, X, strideX, ox, Out, LDO, 1, oo );
+}
+
+/**
+* Computes combinations of a specified length from double-precision floating-point strided array elements using alternative indexing semantics.
+*
+* @param N number of indexed elements
+* @param k number of elements to combine
+* @param replacement boolean indicating whether to allow duplication in combination
+* @param X input array
+* @param strideX stride length for X
+* @param offsetX starting index for X
+* @param Out output array
+* @param strideOut1 stride length for the first dimension of Out
+* @param strideOut2 stride length for the second dimension of Out
+* @param offsetOut starting index for Out
+*/
+void API_SUFFIX(stdlib_strided_dcombinations_ndarray)( const CBLAS_INT N, const CBLAS_INT k, const bool replacement, const double *X, const CBLAS_INT strideX, const CBLAS_INT offsetX, double *Out, const CBLAS_INT strideOut1, const CBLAS_INT strideOut2, const CBLAS_INT offsetOut ) {
+ CBLAS_INT indices[ k ];
+ CBLAS_INT val;
+ CBLAS_INT io;
+ CBLAS_INT i;
+ CBLAS_INT j;
+ int64_t C;
+ int64_t c;
+
+ if ( N <= 0 || k <= 0 ) {
+ return;
+ }
+ if ( !replacement && k > N ) {
+ return;
+ }
+
+ // Compute total number of combinations:
+ if ( replacement ) {
+ C = stdlib_base_binomcoef( N + k - 1, k );
+ } else {
+ C = stdlib_base_binomcoef( N, k );
+ }
+
+ // Initialize combination index array:
+ if ( replacement ) {
+ for ( i = 0; i < k; i++ ) {
+ indices[ i ] = 0;
+ }
+ } else {
+ for ( i = 0; i < k; i++ ) {
+ indices[ i ] = i;
+ }
+ }
+ io = offsetOut;
+ for ( c = 0; c < C; c++ ) {
+ // Write current combination to output:
+ for ( j = 0; j < k; j++ ) {
+ Out[ io + (j * strideOut2) ] = X[ offsetX + (indices[ j ] * strideX) ];
+ }
+ io += strideOut1;
+
+ // Advance to next combination:
+ if ( replacement ) {
+ // Find rightmost index that can be incremented:
+ j = k - 1;
+ while ( j >= 0 && indices[ j ] == N - 1 ) {
+ j -= 1;
+ }
+ if ( j >= 0 ) {
+ val = indices[ j ] + 1;
+ for ( i = j; i < k; i++ ) {
+ indices[ i ] = val;
+ }
+ }
+ } else {
+ // Find rightmost index that can be incremented:
+ j = k - 1;
+ while ( j >= 0 && indices[ j ] == N - k + j ) {
+ j -= 1;
+ }
+ if ( j >= 0 ) {
+ indices[ j ] += 1;
+ for ( i = j + 1; i < k; i++ ) {
+ indices[ i ] = indices[ i - 1 ] + 1;
+ }
+ }
+ }
+ }
+ return;
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dcombinations/test/test.dcombinations.js b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/test/test.dcombinations.js
new file mode 100644
index 000000000000..80305eebc6a0
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/test/test.dcombinations.js
@@ -0,0 +1,321 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var Float64Array = require( '@stdlib/array/float64' );
+var dcombinations = require( './../lib/dcombinations.js' );
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+ t.ok( true, __filename );
+ t.strictEqual( typeof dcombinations, 'function', 'main export is a function' );
+ t.end();
+});
+
+tape( 'the function has an arity of 7', function test( t ) {
+ t.strictEqual( dcombinations.length, 7, 'has expected arity' );
+ t.end();
+});
+
+tape( 'the function computes combinations without replacement', function test( t ) {
+ var expected;
+ var out;
+ var x;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+ out = new Float64Array( 12 );
+ expected = new Float64Array([
+ 1.0,
+ 2.0,
+ 1.0,
+ 3.0,
+ 1.0,
+ 4.0,
+ 2.0,
+ 3.0,
+ 2.0,
+ 4.0,
+ 3.0,
+ 4.0
+ ]);
+
+ dcombinations( 4, 2, false, x, 1, out, 2 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function computes combinations with replacement', function test( t ) {
+ var expected;
+ var out;
+ var x;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+ out = new Float64Array( 12 );
+ expected = new Float64Array([
+ 1.0,
+ 1.0,
+ 1.0,
+ 2.0,
+ 1.0,
+ 3.0,
+ 2.0,
+ 2.0,
+ 2.0,
+ 3.0,
+ 3.0,
+ 3.0
+ ]);
+
+ dcombinations( 3, 2, true, x, 1, out, 2 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function returns a reference to the output array', function test( t ) {
+ var out;
+ var x;
+ var z;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+ out = new Float64Array( 12 );
+ z = dcombinations( 4, 2, false, x, 1, out, 2 );
+
+ t.strictEqual( z, out, 'same reference' );
+ t.end();
+});
+
+tape( 'if provided an `N` parameter equal to `0`, the function returns the output array unchanged', function test( t ) {
+ var expected;
+ var out;
+ var x;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+ out = new Float64Array( [ 5.0, 6.0, 7.0, 8.0 ] );
+ expected = new Float64Array( [ 5.0, 6.0, 7.0, 8.0 ] );
+
+ dcombinations( 0, 2, false, x, 1, out, 2 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'if provided a `k` parameter equal to `0`, the function returns the output array unchanged', function test( t ) {
+ var expected;
+ var out;
+ var x;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+ out = new Float64Array( [ 5.0, 6.0, 7.0, 8.0 ] );
+ expected = new Float64Array( [ 5.0, 6.0, 7.0, 8.0 ] );
+
+ dcombinations( 3, 0, false, x, 1, out, 2 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'if `k > N` and `replacement` is `false`, the function returns the output array unchanged', function test( t ) {
+ var expected;
+ var out;
+ var x;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+ out = new Float64Array( [ 5.0, 6.0, 7.0, 8.0 ] );
+ expected = new Float64Array( [ 5.0, 6.0, 7.0, 8.0 ] );
+
+ dcombinations( 3, 4, false, x, 1, out, 2 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports specifying a stride for `x`', function test( t ) {
+ var expected;
+ var out;
+ var x;
+
+ x = new Float64Array([
+ 1.0, // 0
+ 0.0,
+ 2.0, // 1
+ 0.0,
+ 3.0, // 2
+ 0.0,
+ 4.0 // 3
+ ]);
+ out = new Float64Array( 12 );
+ expected = new Float64Array([
+ 1.0,
+ 2.0,
+ 1.0,
+ 3.0,
+ 1.0,
+ 4.0,
+ 2.0,
+ 3.0,
+ 2.0,
+ 4.0,
+ 3.0,
+ 4.0
+ ]);
+
+ dcombinations( 4, 2, false, x, 2, out, 2 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports specifying a negative stride for `x`', function test( t ) {
+ var expected;
+ var out;
+ var x;
+
+ x = new Float64Array([
+ 4.0, // 3
+ 3.0, // 2
+ 2.0, // 1
+ 1.0 // 0
+ ]);
+ out = new Float64Array( 12 );
+ expected = new Float64Array([
+ 1.0,
+ 2.0,
+ 1.0,
+ 3.0,
+ 1.0,
+ 4.0,
+ 2.0,
+ 3.0,
+ 2.0,
+ 4.0,
+ 3.0,
+ 4.0
+ ]);
+
+ dcombinations( 4, 2, false, x, -1, out, 2 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports specifying a stride for the output combinations', function test( t ) {
+ var expected;
+ var out;
+ var x;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+ out = new Float64Array( 24 );
+ expected = new Float64Array([
+ 1.0,
+ 2.0,
+ 0.0,
+ 0.0,
+ 1.0,
+ 3.0,
+ 0.0,
+ 0.0,
+ 1.0,
+ 4.0,
+ 0.0,
+ 0.0,
+ 2.0,
+ 3.0,
+ 0.0,
+ 0.0,
+ 2.0,
+ 4.0,
+ 0.0,
+ 0.0,
+ 3.0,
+ 4.0,
+ 0.0,
+ 0.0
+ ]);
+
+ dcombinations( 4, 2, false, x, 1, out, 4 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports specifying a negative stride for the output combinations', function test( t ) {
+ var expected;
+ var out;
+ var x;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+ out = new Float64Array( 12 );
+ expected = new Float64Array([
+ 3.0,
+ 4.0,
+ 2.0,
+ 4.0,
+ 2.0,
+ 3.0,
+ 1.0,
+ 4.0,
+ 1.0,
+ 3.0,
+ 1.0,
+ 2.0
+ ]);
+
+ dcombinations( 4, 2, false, x, 1, out, -2 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports view offsets', function test( t ) {
+ var expected;
+ var out;
+ var x0;
+ var x1;
+
+ x0 = new Float64Array( [ 0.0, 1.0, 2.0, 3.0, 4.0 ] );
+ x1 = new Float64Array( x0.buffer, x0.BYTES_PER_ELEMENT*1 );
+
+ out = new Float64Array( 12 );
+ expected = new Float64Array([
+ 1.0,
+ 2.0,
+ 1.0,
+ 3.0,
+ 1.0,
+ 4.0,
+ 2.0,
+ 3.0,
+ 2.0,
+ 4.0,
+ 3.0,
+ 4.0
+ ]);
+
+ dcombinations( 4, 2, false, x1, 1, out, 2 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dcombinations/test/test.dcombinations.native.js b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/test/test.dcombinations.native.js
new file mode 100644
index 000000000000..ca81905d704d
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/test/test.dcombinations.native.js
@@ -0,0 +1,330 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var resolve = require( 'path' ).resolve;
+var tape = require( 'tape' );
+var Float64Array = require( '@stdlib/array/float64' );
+var tryRequire = require( '@stdlib/utils/try-require' );
+
+
+// VARIABLES //
+
+var dcombinations = tryRequire( resolve( __dirname, './../lib/dcombinations.native.js' ) );
+var opts = {
+ 'skip': ( dcombinations instanceof Error )
+};
+
+
+// TESTS //
+
+tape( 'main export is a function', opts, function test( t ) {
+ t.ok( true, __filename );
+ t.strictEqual( typeof dcombinations, 'function', 'main export is a function' );
+ t.end();
+});
+
+tape( 'the function has an arity of 7', opts, function test( t ) {
+ t.strictEqual( dcombinations.length, 7, 'has expected arity' );
+ t.end();
+});
+
+tape( 'the function computes combinations without replacement', opts, function test( t ) {
+ var expected;
+ var out;
+ var x;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+ out = new Float64Array( 12 );
+ expected = new Float64Array([
+ 1.0,
+ 2.0,
+ 1.0,
+ 3.0,
+ 1.0,
+ 4.0,
+ 2.0,
+ 3.0,
+ 2.0,
+ 4.0,
+ 3.0,
+ 4.0
+ ]);
+
+ dcombinations( 4, 2, false, x, 1, out, 2 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function computes combinations with replacement', opts, function test( t ) {
+ var expected;
+ var out;
+ var x;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+ out = new Float64Array( 12 );
+ expected = new Float64Array([
+ 1.0,
+ 1.0,
+ 1.0,
+ 2.0,
+ 1.0,
+ 3.0,
+ 2.0,
+ 2.0,
+ 2.0,
+ 3.0,
+ 3.0,
+ 3.0
+ ]);
+
+ dcombinations( 3, 2, true, x, 1, out, 2 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function returns a reference to the output array', opts, function test( t ) {
+ var out;
+ var x;
+ var z;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+ out = new Float64Array( 12 );
+ z = dcombinations( 4, 2, false, x, 1, out, 2 );
+
+ t.strictEqual( z, out, 'same reference' );
+ t.end();
+});
+
+tape( 'if provided an `N` parameter equal to `0`, the function returns the output array unchanged', opts, function test( t ) {
+ var expected;
+ var out;
+ var x;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+ out = new Float64Array( [ 5.0, 6.0, 7.0, 8.0 ] );
+ expected = new Float64Array( [ 5.0, 6.0, 7.0, 8.0 ] );
+
+ dcombinations( 0, 2, false, x, 1, out, 2 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'if provided a `k` parameter equal to `0`, the function returns the output array unchanged', opts, function test( t ) {
+ var expected;
+ var out;
+ var x;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+ out = new Float64Array( [ 5.0, 6.0, 7.0, 8.0 ] );
+ expected = new Float64Array( [ 5.0, 6.0, 7.0, 8.0 ] );
+
+ dcombinations( 3, 0, false, x, 1, out, 2 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'if `k > N` and `replacement` is `false`, the function returns the output array unchanged', opts, function test( t ) {
+ var expected;
+ var out;
+ var x;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+ out = new Float64Array( [ 5.0, 6.0, 7.0, 8.0 ] );
+ expected = new Float64Array( [ 5.0, 6.0, 7.0, 8.0 ] );
+
+ dcombinations( 3, 4, false, x, 1, out, 2 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports specifying a stride for `x`', opts, function test( t ) {
+ var expected;
+ var out;
+ var x;
+
+ x = new Float64Array([
+ 1.0, // 0
+ 0.0,
+ 2.0, // 1
+ 0.0,
+ 3.0, // 2
+ 0.0,
+ 4.0 // 3
+ ]);
+ out = new Float64Array( 12 );
+ expected = new Float64Array([
+ 1.0,
+ 2.0,
+ 1.0,
+ 3.0,
+ 1.0,
+ 4.0,
+ 2.0,
+ 3.0,
+ 2.0,
+ 4.0,
+ 3.0,
+ 4.0
+ ]);
+
+ dcombinations( 4, 2, false, x, 2, out, 2 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports specifying a negative stride for `x`', opts, function test( t ) {
+ var expected;
+ var out;
+ var x;
+
+ x = new Float64Array([
+ 4.0, // 3
+ 3.0, // 2
+ 2.0, // 1
+ 1.0 // 0
+ ]);
+ out = new Float64Array( 12 );
+ expected = new Float64Array([
+ 1.0,
+ 2.0,
+ 1.0,
+ 3.0,
+ 1.0,
+ 4.0,
+ 2.0,
+ 3.0,
+ 2.0,
+ 4.0,
+ 3.0,
+ 4.0
+ ]);
+
+ dcombinations( 4, 2, false, x, -1, out, 2 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports specifying a stride for the output combinations', opts, function test( t ) {
+ var expected;
+ var out;
+ var x;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+ out = new Float64Array( 24 );
+ expected = new Float64Array([
+ 1.0,
+ 2.0,
+ 0.0,
+ 0.0,
+ 1.0,
+ 3.0,
+ 0.0,
+ 0.0,
+ 1.0,
+ 4.0,
+ 0.0,
+ 0.0,
+ 2.0,
+ 3.0,
+ 0.0,
+ 0.0,
+ 2.0,
+ 4.0,
+ 0.0,
+ 0.0,
+ 3.0,
+ 4.0,
+ 0.0,
+ 0.0
+ ]);
+
+ dcombinations( 4, 2, false, x, 1, out, 4 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports specifying a negative stride for the output combinations', opts, function test( t ) {
+ var expected;
+ var out;
+ var x;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+ out = new Float64Array( 12 );
+ expected = new Float64Array([
+ 3.0,
+ 4.0,
+ 2.0,
+ 4.0,
+ 2.0,
+ 3.0,
+ 1.0,
+ 4.0,
+ 1.0,
+ 3.0,
+ 1.0,
+ 2.0
+ ]);
+
+ dcombinations( 4, 2, false, x, 1, out, -2 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports view offsets', opts, function test( t ) {
+ var expected;
+ var out;
+ var x0;
+ var x1;
+
+ x0 = new Float64Array( [ 0.0, 1.0, 2.0, 3.0, 4.0 ] );
+ x1 = new Float64Array( x0.buffer, x0.BYTES_PER_ELEMENT*1 );
+
+ out = new Float64Array( 12 );
+ expected = new Float64Array([
+ 1.0,
+ 2.0,
+ 1.0,
+ 3.0,
+ 1.0,
+ 4.0,
+ 2.0,
+ 3.0,
+ 2.0,
+ 4.0,
+ 3.0,
+ 4.0
+ ]);
+
+ dcombinations( 4, 2, false, x1, 1, out, 2 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dcombinations/test/test.js b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/test/test.js
new file mode 100644
index 000000000000..0d396d2dd730
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/test/test.js
@@ -0,0 +1,82 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var proxyquire = require( 'proxyquire' );
+var IS_BROWSER = require( '@stdlib/assert/is-browser' );
+var dcombinations = require( './../lib' );
+
+
+// VARIABLES //
+
+var opts = {
+ 'skip': IS_BROWSER
+};
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+ t.ok( true, __filename );
+ t.strictEqual( typeof dcombinations, 'function', 'main export is a function' );
+ t.end();
+});
+
+tape( 'attached to the main export is a method providing an ndarray interface', function test( t ) {
+ t.strictEqual( typeof dcombinations.ndarray, 'function', 'method is a function' );
+ t.end();
+});
+
+tape( 'if a native implementation is available, the main export is the native implementation', opts, function test( t ) {
+ var dcombinations = proxyquire( './../lib', {
+ '@stdlib/utils/try-require': tryRequire
+ });
+
+ t.strictEqual( dcombinations, mock, 'returns native implementation' );
+ t.end();
+
+ function tryRequire() {
+ return mock;
+ }
+
+ function mock() {
+ // Mock...
+ }
+});
+
+tape( 'if a native implementation is not available, the main export is a JavaScript implementation', opts, function test( t ) {
+ var dcombinations;
+ var main;
+
+ main = require( './../lib/main.js' );
+
+ dcombinations = proxyquire( './../lib', {
+ '@stdlib/utils/try-require': tryRequire
+ });
+
+ t.strictEqual( dcombinations, main, 'returns JavaScript implementation' );
+ t.end();
+
+ function tryRequire() {
+ return new Error( 'Cannot find module' );
+ }
+});
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dcombinations/test/test.ndarray.js b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/test/test.ndarray.js
new file mode 100644
index 000000000000..1a66a40cf873
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/test/test.ndarray.js
@@ -0,0 +1,404 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var Float64Array = require( '@stdlib/array/float64' );
+var dcombinations = require( './../lib/ndarray.js' );
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+ t.ok( true, __filename );
+ t.strictEqual( typeof dcombinations, 'function', 'main export is a function' );
+ t.end();
+});
+
+tape( 'the function has an arity of 10', function test( t ) {
+ t.strictEqual( dcombinations.length, 10, 'has expected arity' );
+ t.end();
+});
+
+tape( 'the function computes combinations without replacement', function test( t ) {
+ var expected;
+ var out;
+ var x;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+ out = new Float64Array( 12 );
+ expected = new Float64Array([
+ 1.0,
+ 2.0,
+ 1.0,
+ 3.0,
+ 1.0,
+ 4.0,
+ 2.0,
+ 3.0,
+ 2.0,
+ 4.0,
+ 3.0,
+ 4.0
+ ]);
+
+ dcombinations( 4, 2, false, x, 1, 0, out, 2, 1, 0 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function computes combinations with replacement', function test( t ) {
+ var expected;
+ var out;
+ var x;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+ out = new Float64Array( 12 );
+ expected = new Float64Array([
+ 1.0,
+ 1.0,
+ 1.0,
+ 2.0,
+ 1.0,
+ 3.0,
+ 2.0,
+ 2.0,
+ 2.0,
+ 3.0,
+ 3.0,
+ 3.0
+ ]);
+
+ dcombinations( 3, 2, true, x, 1, 0, out, 2, 1, 0 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function returns a reference to the output array', function test( t ) {
+ var out;
+ var x;
+ var z;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+ out = new Float64Array( 12 );
+ z = dcombinations( 4, 2, false, x, 1, 0, out, 2, 1, 0 );
+
+ t.strictEqual( z, out, 'same reference' );
+ t.end();
+});
+
+tape( 'if provided an `N` parameter equal to `0`, the function returns the output array unchanged', function test( t ) {
+ var expected;
+ var out;
+ var x;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+ out = new Float64Array( [ 5.0, 6.0, 7.0, 8.0 ] );
+ expected = new Float64Array( [ 5.0, 6.0, 7.0, 8.0 ] );
+
+ dcombinations( 0, 2, false, x, 1, 0, out, 2, 1, 0 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'if provided a `k` parameter equal to `0`, the function returns the output array unchanged', function test( t ) {
+ var expected;
+ var out;
+ var x;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+ out = new Float64Array( [ 5.0, 6.0, 7.0, 8.0 ] );
+ expected = new Float64Array( [ 5.0, 6.0, 7.0, 8.0 ] );
+
+ dcombinations( 3, 0, false, x, 1, 0, out, 2, 1, 0 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'if `k > N` and `replacement` is `false`, the function returns the output array unchanged', function test( t ) {
+ var expected;
+ var out;
+ var x;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+ out = new Float64Array( [ 5.0, 6.0, 7.0, 8.0 ] );
+ expected = new Float64Array( [ 5.0, 6.0, 7.0, 8.0 ] );
+
+ dcombinations( 3, 4, false, x, 1, 0, out, 2, 1, 0 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports specifying a stride for `x`', function test( t ) {
+ var expected;
+ var out;
+ var x;
+
+ x = new Float64Array([
+ 1.0, // 0
+ 0.0,
+ 2.0, // 1
+ 0.0,
+ 3.0, // 2
+ 0.0,
+ 4.0 // 3
+ ]);
+ out = new Float64Array( 12 );
+ expected = new Float64Array([
+ 1.0,
+ 2.0,
+ 1.0,
+ 3.0,
+ 1.0,
+ 4.0,
+ 2.0,
+ 3.0,
+ 2.0,
+ 4.0,
+ 3.0,
+ 4.0
+ ]);
+
+ dcombinations( 4, 2, false, x, 2, 0, out, 2, 1, 0 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports specifying a negative stride for `x`', function test( t ) {
+ var expected;
+ var out;
+ var x;
+
+ x = new Float64Array([
+ 4.0, // 3
+ 3.0, // 2
+ 2.0, // 1
+ 1.0 // 0
+ ]);
+ out = new Float64Array( 12 );
+ expected = new Float64Array([
+ 1.0,
+ 2.0,
+ 1.0,
+ 3.0,
+ 1.0,
+ 4.0,
+ 2.0,
+ 3.0,
+ 2.0,
+ 4.0,
+ 3.0,
+ 4.0
+ ]);
+
+ dcombinations( 4, 2, false, x, -1, 3, out, 2, 1, 0 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports specifying a stride for the output combinations', function test( t ) {
+ var expected;
+ var out;
+ var x;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+ out = new Float64Array( 24 );
+ expected = new Float64Array([
+ 1.0,
+ 2.0,
+ 0.0,
+ 0.0,
+ 1.0,
+ 3.0,
+ 0.0,
+ 0.0,
+ 1.0,
+ 4.0,
+ 0.0,
+ 0.0,
+ 2.0,
+ 3.0,
+ 0.0,
+ 0.0,
+ 2.0,
+ 4.0,
+ 0.0,
+ 0.0,
+ 3.0,
+ 4.0,
+ 0.0,
+ 0.0
+ ]);
+
+ dcombinations( 4, 2, false, x, 1, 0, out, 4, 1, 0 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports specifying a negative stride for the output combinations', function test( t ) {
+ var expected;
+ var out;
+ var x;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+ out = new Float64Array( 12 );
+ expected = new Float64Array([
+ 3.0,
+ 4.0,
+ 2.0,
+ 4.0,
+ 2.0,
+ 3.0,
+ 1.0,
+ 4.0,
+ 1.0,
+ 3.0,
+ 1.0,
+ 2.0
+ ]);
+
+ dcombinations( 4, 2, false, x, 1, 0, out, -2, 1, 10 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports specifying a negative stride for the output combination elements', function test( t ) {
+ var expected;
+ var out;
+ var x;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+ out = new Float64Array( 12 );
+ expected = new Float64Array([
+ 2.0,
+ 1.0,
+ 3.0,
+ 1.0,
+ 4.0,
+ 1.0,
+ 3.0,
+ 2.0,
+ 4.0,
+ 2.0,
+ 4.0,
+ 3.0
+ ]);
+
+ dcombinations( 4, 2, false, x, 1, 0, out, 2, -1, 1 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports an `offsetX` parameter', function test( t ) {
+ var expected;
+ var out;
+ var x;
+
+ x = new Float64Array( [ 0.0, 1.0, 2.0, 3.0, 4.0 ] );
+ out = new Float64Array( 12 );
+ expected = new Float64Array([
+ 1.0,
+ 2.0,
+ 1.0,
+ 3.0,
+ 1.0,
+ 4.0,
+ 2.0,
+ 3.0,
+ 2.0,
+ 4.0,
+ 3.0,
+ 4.0
+ ]);
+
+ dcombinations( 4, 2, false, x, 1, 1, out, 2, 1, 0 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports an `offsetOut` parameter', function test( t ) {
+ var expected;
+ var out;
+ var x;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+ out = new Float64Array( 14 );
+ expected = new Float64Array([
+ 0.0,
+ 0.0,
+ 1.0,
+ 2.0,
+ 1.0,
+ 3.0,
+ 1.0,
+ 4.0,
+ 2.0,
+ 3.0,
+ 2.0,
+ 4.0,
+ 3.0,
+ 4.0
+ ]);
+
+ dcombinations( 4, 2, false, x, 1, 0, out, 2, 1, 2 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports a column-major output layout', function test( t ) {
+ var expected;
+ var out;
+ var x;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+ out = new Float64Array( 12 );
+ expected = new Float64Array([
+ 1.0,
+ 1.0,
+ 1.0,
+ 2.0,
+ 2.0,
+ 3.0,
+ 2.0,
+ 3.0,
+ 4.0,
+ 3.0,
+ 4.0,
+ 4.0
+ ]);
+
+ dcombinations( 4, 2, false, x, 1, 0, out, 1, 6, 0 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dcombinations/test/test.ndarray.native.js b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/test/test.ndarray.native.js
new file mode 100644
index 000000000000..3b8171e680ca
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dcombinations/test/test.ndarray.native.js
@@ -0,0 +1,413 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var resolve = require( 'path' ).resolve;
+var tape = require( 'tape' );
+var Float64Array = require( '@stdlib/array/float64' );
+var tryRequire = require( '@stdlib/utils/try-require' );
+
+
+// VARIABLES //
+
+var dcombinations = tryRequire( resolve( __dirname, './../lib/ndarray.native.js' ) );
+var opts = {
+ 'skip': ( dcombinations instanceof Error )
+};
+
+
+// TESTS //
+
+tape( 'main export is a function', opts, function test( t ) {
+ t.ok( true, __filename );
+ t.strictEqual( typeof dcombinations, 'function', 'main export is a function' );
+ t.end();
+});
+
+tape( 'the function has an arity of 10', opts, function test( t ) {
+ t.strictEqual( dcombinations.length, 10, 'has expected arity' );
+ t.end();
+});
+
+tape( 'the function computes combinations without replacement', opts, function test( t ) {
+ var expected;
+ var out;
+ var x;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+ out = new Float64Array( 12 );
+ expected = new Float64Array([
+ 1.0,
+ 2.0,
+ 1.0,
+ 3.0,
+ 1.0,
+ 4.0,
+ 2.0,
+ 3.0,
+ 2.0,
+ 4.0,
+ 3.0,
+ 4.0
+ ]);
+
+ dcombinations( 4, 2, false, x, 1, 0, out, 2, 1, 0 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function computes combinations with replacement', opts, function test( t ) {
+ var expected;
+ var out;
+ var x;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+ out = new Float64Array( 12 );
+ expected = new Float64Array([
+ 1.0,
+ 1.0,
+ 1.0,
+ 2.0,
+ 1.0,
+ 3.0,
+ 2.0,
+ 2.0,
+ 2.0,
+ 3.0,
+ 3.0,
+ 3.0
+ ]);
+
+ dcombinations( 3, 2, true, x, 1, 0, out, 2, 1, 0 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function returns a reference to the output array', opts, function test( t ) {
+ var out;
+ var x;
+ var z;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+ out = new Float64Array( 12 );
+ z = dcombinations( 4, 2, false, x, 1, 0, out, 2, 1, 0 );
+
+ t.strictEqual( z, out, 'same reference' );
+ t.end();
+});
+
+tape( 'if provided an `N` parameter equal to `0`, the function returns the output array unchanged', opts, function test( t ) {
+ var expected;
+ var out;
+ var x;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+ out = new Float64Array( [ 5.0, 6.0, 7.0, 8.0 ] );
+ expected = new Float64Array( [ 5.0, 6.0, 7.0, 8.0 ] );
+
+ dcombinations( 0, 2, false, x, 1, 0, out, 2, 1, 0 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'if provided a `k` parameter equal to `0`, the function returns the output array unchanged', opts, function test( t ) {
+ var expected;
+ var out;
+ var x;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+ out = new Float64Array( [ 5.0, 6.0, 7.0, 8.0 ] );
+ expected = new Float64Array( [ 5.0, 6.0, 7.0, 8.0 ] );
+
+ dcombinations( 3, 0, false, x, 1, 0, out, 2, 1, 0 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'if `k > N` and `replacement` is `false`, the function returns the output array unchanged', opts, function test( t ) {
+ var expected;
+ var out;
+ var x;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+ out = new Float64Array( [ 5.0, 6.0, 7.0, 8.0 ] );
+ expected = new Float64Array( [ 5.0, 6.0, 7.0, 8.0 ] );
+
+ dcombinations( 3, 4, false, x, 1, 0, out, 2, 1, 0 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports specifying a stride for `x`', opts, function test( t ) {
+ var expected;
+ var out;
+ var x;
+
+ x = new Float64Array([
+ 1.0, // 0
+ 0.0,
+ 2.0, // 1
+ 0.0,
+ 3.0, // 2
+ 0.0,
+ 4.0 // 3
+ ]);
+ out = new Float64Array( 12 );
+ expected = new Float64Array([
+ 1.0,
+ 2.0,
+ 1.0,
+ 3.0,
+ 1.0,
+ 4.0,
+ 2.0,
+ 3.0,
+ 2.0,
+ 4.0,
+ 3.0,
+ 4.0
+ ]);
+
+ dcombinations( 4, 2, false, x, 2, 0, out, 2, 1, 0 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports specifying a negative stride for `x`', opts, function test( t ) {
+ var expected;
+ var out;
+ var x;
+
+ x = new Float64Array([
+ 4.0, // 3
+ 3.0, // 2
+ 2.0, // 1
+ 1.0 // 0
+ ]);
+ out = new Float64Array( 12 );
+ expected = new Float64Array([
+ 1.0,
+ 2.0,
+ 1.0,
+ 3.0,
+ 1.0,
+ 4.0,
+ 2.0,
+ 3.0,
+ 2.0,
+ 4.0,
+ 3.0,
+ 4.0
+ ]);
+
+ dcombinations( 4, 2, false, x, -1, 3, out, 2, 1, 0 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports specifying a stride for the output combinations', opts, function test( t ) {
+ var expected;
+ var out;
+ var x;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+ out = new Float64Array( 24 );
+ expected = new Float64Array([
+ 1.0,
+ 2.0,
+ 0.0,
+ 0.0,
+ 1.0,
+ 3.0,
+ 0.0,
+ 0.0,
+ 1.0,
+ 4.0,
+ 0.0,
+ 0.0,
+ 2.0,
+ 3.0,
+ 0.0,
+ 0.0,
+ 2.0,
+ 4.0,
+ 0.0,
+ 0.0,
+ 3.0,
+ 4.0,
+ 0.0,
+ 0.0
+ ]);
+
+ dcombinations( 4, 2, false, x, 1, 0, out, 4, 1, 0 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports specifying a negative stride for the output combinations', opts, function test( t ) {
+ var expected;
+ var out;
+ var x;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+ out = new Float64Array( 12 );
+ expected = new Float64Array([
+ 3.0,
+ 4.0,
+ 2.0,
+ 4.0,
+ 2.0,
+ 3.0,
+ 1.0,
+ 4.0,
+ 1.0,
+ 3.0,
+ 1.0,
+ 2.0
+ ]);
+
+ dcombinations( 4, 2, false, x, 1, 0, out, -2, 1, 10 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports specifying a negative stride for the output combination elements', opts, function test( t ) {
+ var expected;
+ var out;
+ var x;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+ out = new Float64Array( 12 );
+ expected = new Float64Array([
+ 2.0,
+ 1.0,
+ 3.0,
+ 1.0,
+ 4.0,
+ 1.0,
+ 3.0,
+ 2.0,
+ 4.0,
+ 2.0,
+ 4.0,
+ 3.0
+ ]);
+
+ dcombinations( 4, 2, false, x, 1, 0, out, 2, -1, 1 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports an `offsetX` parameter', opts, function test( t ) {
+ var expected;
+ var out;
+ var x;
+
+ x = new Float64Array( [ 0.0, 1.0, 2.0, 3.0, 4.0 ] );
+ out = new Float64Array( 12 );
+ expected = new Float64Array([
+ 1.0,
+ 2.0,
+ 1.0,
+ 3.0,
+ 1.0,
+ 4.0,
+ 2.0,
+ 3.0,
+ 2.0,
+ 4.0,
+ 3.0,
+ 4.0
+ ]);
+
+ dcombinations( 4, 2, false, x, 1, 1, out, 2, 1, 0 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports an `offsetOut` parameter', opts, function test( t ) {
+ var expected;
+ var out;
+ var x;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+ out = new Float64Array( 14 );
+ expected = new Float64Array([
+ 0.0,
+ 0.0,
+ 1.0,
+ 2.0,
+ 1.0,
+ 3.0,
+ 1.0,
+ 4.0,
+ 2.0,
+ 3.0,
+ 2.0,
+ 4.0,
+ 3.0,
+ 4.0
+ ]);
+
+ dcombinations( 4, 2, false, x, 1, 0, out, 2, 1, 2 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports a column-major output layout', opts, function test( t ) {
+ var expected;
+ var out;
+ var x;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+ out = new Float64Array( 12 );
+ expected = new Float64Array([
+ 1.0,
+ 1.0,
+ 1.0,
+ 2.0,
+ 2.0,
+ 3.0,
+ 2.0,
+ 3.0,
+ 4.0,
+ 3.0,
+ 4.0,
+ 4.0
+ ]);
+
+ dcombinations( 4, 2, false, x, 1, 0, out, 1, 6, 0 );
+ t.deepEqual( out, expected, 'returns expected value' );
+
+ t.end();
+});