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fabsl(3) [centos man page]

FABS(3) 						     Linux Programmer's Manual							   FABS(3)

NAME
fabs, fabsf, fabsl - absolute value of floating-point number SYNOPSIS
#include <math.h> double fabs(double x); float fabsf(float x); long double fabsl(long double x); Link with -lm. Feature Test Macro Requirements for glibc (see feature_test_macros(7)): fabsf(), fabsl(): _BSD_SOURCE || _SVID_SOURCE || _XOPEN_SOURCE >= 600 || _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L; or cc -std=c99 DESCRIPTION
These functions return the absolute value of the floating-point number x. RETURN VALUE
These functions return the absolute value of x. If x is a NaN, a NaN is returned. If x is -0, +0 is returned. If x is negative infinity or positive infinity, positive infinity is returned. ERRORS
No errors occur. ATTRIBUTES
Multithreading (see pthreads(7)) The fabs(), fabsf(), and fabsl() functions are thread-safe. CONFORMING TO
C99, POSIX.1-2001. The variant returning double also conforms to SVr4, 4.3BSD, C89. SEE ALSO
abs(3), cabs(3), ceil(3), floor(3), labs(3), rint(3) COLOPHON
This page is part of release 3.53 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/. 2013-07-10 FABS(3)

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FABS(3) 						     Linux Programmer's Manual							   FABS(3)

NAME
fabs, fabsf, fabsl - absolute value of floating-point number SYNOPSIS
#include <math.h> double fabs(double x); float fabsf(float x); long double fabsl(long double x); Link with -lm. Feature Test Macro Requirements for glibc (see feature_test_macros(7)): fabsf(), fabsl(): _BSD_SOURCE || _SVID_SOURCE || _XOPEN_SOURCE >= 600 || _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L; or cc -std=c99 DESCRIPTION
The fabs() functions return the absolute value of the floating-point number x. RETURN VALUE
These functions return the absolute value of x. If x is a NaN, a NaN is returned. If x is -0, +0 is returned. If x is negative infinity or positive infinity, positive infinity is returned. ERRORS
No errors occur. CONFORMING TO
C99, POSIX.1-2001. The variant returning double also conforms to SVr4, 4.3BSD, C89. SEE ALSO
abs(3), cabs(3), ceil(3), floor(3), labs(3), rint(3) COLOPHON
This page is part of release 3.27 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/. 2010-09-20 FABS(3)
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