GNU/Linux man pages
Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :
GNU/Linux |
Debian 6.0.7(Squeeze) |
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fdimf(3) |
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fdim, fdimf, fdiml − positive difference
#include <math.h>
double
fdim(double x, double y);
float fdimf(float x, float y);
long double fdiml(long double x, long
double y);
Link with −lm.
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
fdimf(), fdiml():
_XOPEN_SOURCE >= 600
|| _ISOC99_SOURCE ||
_POSIX_C_SOURCE >= 200112L;
or cc -std=c99
These functions return the positive difference, max(x-y,0), between their arguments.
On success, these functions return the positive difference.
If x or y is a NaN, a NaN is returned.
If the result overflows, a range error occurs, and the functions return HUGE_VAL, HUGE_VALF, or HUGE_VALL, respectively.
See math_error(7) for information on how to determine whether an error has occurred when calling these functions.
The following
errors can occur:
Range error: result overflow
An overflow floating-point exception (FE_OVERFLOW) is raised.
These functions do not set errno.
These functions first appeared in glibc in version 2.1.
C99, POSIX.1-2001.
fmax(3)
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/.
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fdimf(3) | |