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Remove nightly requirement for no_std #184

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Merged
est31 merged 1 commit into from
Nov 7, 2024
Merged

Remove nightly requirement for no_std #184

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1 change: 0 additions & 1 deletion dasp_sample/src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -5,7 +5,6 @@
//! are based.

#![cfg_attr(not(feature = "std"), no_std)]
#![cfg_attr(not(feature = "std"), feature(core_intrinsics))]

#[cfg(not(feature = "std"))]
extern crate alloc;
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12 changes: 10 additions & 2 deletions dasp_sample/src/ops.rs
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Expand Up @@ -4,7 +4,11 @@ pub mod f32 {

#[cfg(not(feature = "std"))]
pub fn sqrt(x: f32) -> f32 {
unsafe { core::intrinsics::sqrtf32(x) }
if x >= 0.0 {
f32::from_bits((x.to_bits() + 0x3f80_0000) >> 1)
} else {
f32::NAN
}
}
#[cfg(feature = "std")]
pub fn sqrt(x: f32) -> f32 {
Expand All @@ -18,7 +22,11 @@ pub mod f64 {

#[cfg(not(feature = "std"))]
pub fn sqrt(x: f64) -> f64 {
unsafe { core::intrinsics::sqrtf64(x) }
if x >= 0.0 {
f64::from_bits((x.to_bits() + 0x3f80_0000) >> 1)
} else {
f64::NAN
}
}
#[cfg(feature = "std")]
pub fn sqrt(x: f64) -> f64 {
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