Give safe alternative for integer min. (#3702)

* Give safe alternative for integer min.

* FromReview

Author: HansOlsson

chapters/classes.tex

@@ -1560,6 +1560,11 @@ \subsection{Integer Type}\label{integer-type}
 The default \lstinline!min!- and \lstinline!max!-attributes are the minimum and maximum numbers of \lstinline!IntegerType!.
 The minimal recommended number range for \lstinline!IntegerType! is from -2147483648 to +2147483647, corresponding to a two's-complement 32-bit integer implementation.
 
+\begin{nonnormative}
+Note that \lstinline!-2147483648! as a Modelica expression is the negation of a number above the minimal recommended number range.
+To express the lower limit with all intermediate results within the minimal recommended number range, one may write \lstinline!-2147483647 - 1! instead.
+\end{nonnormative}
+
 The fallback value is the closest value to $0$ consistent with the \lstinline!min! and \lstinline!max! bounds.
 
 The default \lstinline!fixed!-attribute is \lstinline!true! for parameters and constants, and \lstinline!false! for other variables.