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MODF(3)                  BSD Library Functions Manual                  MODF(3)

NAME
     modf -- return integral and fractional parts

SYNOPSIS
     #include <math.h>

     double
     modf(double value, double *iptr);

     long double
     modfl(long double value, long double *iptr);

     float
     modff(float value, float *iptr);

DESCRIPTION
     The modf() break value into integral and fractional parts, each of which has the same sign as the argu-ment. argument.
     ment.  They return the fractional part, and store the integral part (as a floating-point number) in the
     object pointed to by iptr

SPECIAL VALUES
     modf(+-infinity, iptr) returns +-0 and stores +-infinity in the object pointed to by iptr.

     modf(NaN, iptr) returns a NaN and stores a NaN in the object pointed to by iptr.

SEE ALSO
     frexp(3), ldexp(3), math(3)

STANDARDS
     The modf() functions conform to ISO/IEC 9899:1999(E).

BSD                              July 24, 2003                             BSD