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Diffstat (limited to 'newlib/libc/stdlib/abs.c')
-rw-r--r-- | newlib/libc/stdlib/abs.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/newlib/libc/stdlib/abs.c b/newlib/libc/stdlib/abs.c new file mode 100644 index 0000000..0308b57 --- /dev/null +++ b/newlib/libc/stdlib/abs.c @@ -0,0 +1,43 @@ +/* +FUNCTION +<<abs>>---integer absolute value (magnitude) + +INDEX + abs + +ANSI_SYNOPSIS + #include <stdlib.h> + int abs(int <[i]>); + +TRAD_SYNOPSIS + #include <stdlib.h> + int abs(<[i]>) + int <[i]>; + +DESCRIPTION +<<abs>> 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 <<labs>> uses and returns <<long>> rather than <<int>> values. + +RETURNS +The result is a nonnegative integer. + +PORTABILITY +<<abs>> is ANSI. + +No supporting OS subroutines are required. +*/ + +#include <stdlib.h> + +int +_DEFUN (abs, (i), int i) +{ + return (i < 0) ? -i : i; +} |