posix man page for fabsf

FABS(P) 						     POSIX Programmer's Manual							   FABS(P)

NAME

       fabs, fabsf, fabsl - absolute value function

SYNOPSIS

       #include <math.h>

       double fabs(double x);
       float fabsf(float x);
       long double fabsl(long double x);

DESCRIPTION

       These functions shall compute the absolute value of their argument x,| x|.

RETURN VALUE

       Upon successful completion, these functions shall return the absolute value of x.

       If x is NaN, a NaN shall be returned.

       If x is +-0, +0 shall be returned.

       If x is +-Inf, +Inf shall be returned.

ERRORS

       No errors are defined.

       The following sections are informative.

EXAMPLES

       None.

APPLICATION USAGE

       None.

RATIONALE

       None.

FUTURE DIRECTIONS

       None.

SEE ALSO

       isnan() , the Base Definitions volume of IEEE Std 1003.1-2001, <math.h>

COPYRIGHT

       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technol-
       ogy -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
       Electrical  and	Electronics  Engineers, Inc and The Open Group. In the event of any discrepancy between this version and the original IEEE
       and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can  be  obtained
       online at http://www.opengroup.org/unix/online.html .

IEEE
/The Open Group						       2003								   FABS(P)