MODF(3) Linux Programmer's Manual MODF(3)
**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)
June 6, 1993 1