NAME¶

modf - extract signed integral and fractional values from floating-point number

SYNOPSIS¶

#include <math.h>

double modf(double x, double *iptr);

DESCRIPTION¶

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.

RETURN VALUE¶

The modf() function returns the fractional part of x.

CONFORMING TO¶

SVID 3, POSIX, BSD 4.3, ISO 9899

SEE ALSO¶

frexp(3), ldexp(3)