modf

MODF(3)                    Linux Programmer's Manual                   MODF(3)



NAME
       modf, modff, modfl - extract signed integral and fractional values from
       floating-point number

SYNOPSIS
       #include <math.h>

       double modf(double x, double *iptr);

       float modff(float x, float *iptr);

       long double modfl(long double x, long 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.  The float and the long double  vari-
       ants are C99 requirements.

SEE ALSO
       frexp(3), ldexp(3)



                                  2002-07-27                           MODF(3)