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-rw-r--r--newlib/libc/stdlib/labs.c49
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diff --git a/newlib/libc/stdlib/labs.c b/newlib/libc/stdlib/labs.c
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+/*
+FUNCTION
+<<labs>>---long integer absolute value
+
+INDEX
+ labs
+
+ANSI_SYNOPSIS
+ #include <stdlib.h>
+ long labs(long <[i]>);
+
+TRAD_SYNOPSIS
+ #include <stdlib.h>
+ long labs(<[i]>)
+ long <[i]>;
+
+DESCRIPTION
+<<labs>> returns
+@tex
+$|x|$,
+@end tex
+the absolute value of <[i]> (also called the magnitude
+of <[i]>). That is, if <[i]> is negative, the result is the opposite
+of <[i]>, but if <[i]> is nonnegative the result is <[i]>.
+
+The similar function <<abs>> uses and returns <<int>> rather than
+<<long>> values.
+
+RETURNS
+The result is a nonnegative long integer.
+
+PORTABILITY
+<<labs>> is ANSI.
+
+No supporting OS subroutine calls are required.
+*/
+
+#include <stdlib.h>
+
+long
+_DEFUN (labs, (x),
+ long x)
+{
+ if (x < 0)
+ {
+ x = -x;
+ }
+ return x;
+}