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                                   MODF(3)