GNU/Linux man pages
Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :
GNU/Linux |
CentOS 5.6 |
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fabsl(3) |
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fabs, fabsf, fabsl − absolute value of floating-point number
#include <math.h>
double
fabs(double x);
float fabsf(float x);
long double fabsl(long double x);
Link with −lm.
The fabs() functions return the absolute value of the floating-point number x.
No errors can occur.
The fabs() function conforms to SVr4, POSIX.1-2001, 4.3BSD, C89. The other functions are from C99.
abs(3), ceil(3), cabs(3), floor(3), labs(3), rint(3)
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fabsl(3) | |