www.delorie.com/djgpp/doc/libc/libc_303.html   search  
libc.a reference

[ < ] [ > ]   [ << ] [ Up ] [ >> ]         [Top] [Contents] [Index] [ ? ]

fabs

Syntax

 
#include <math.h>

double fabs(double x);

Description

This function computes the absolute value of its argument x.

Return Value

x if x is positive, else -x. Note that in this context, +0.0 is positive and -0.0 is negative. Infinities and NaNs are returned unchanged, except for the sign.

Portability

ANSI/ISO C C89; C99
POSIX 1003.2-1992; 1003.1-2001


  webmaster   donations   bookstore     delorie software   privacy  
  Copyright 2004   by DJ Delorie     Updated Apr 2004