GNU/Linux man pages
Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :
GNU/Linux |
CentOS 4.8 |
i386 |
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modf(3) |
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modf, modff, modfl − extract signed integral and fractional values from floating-point number
#include <math.h>
double modf(double x, double *iptr);
float modff(float x, float *iptr);
long double modfl(long double x, long double *iptr);
The modf() function breaks the argument x into an integral part and a fractional part, each of which has the same sign as x. The integral part is stored in iptr.
The modf() function returns the fractional part of x.
SVID 3, POSIX, BSD 4.3, ISO 9899. The float and the long double variants are C99 requirements.
frexp(3), ldexp(3)
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modf(3) | |