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

NAME
     mmooddff - return integral and fractional parts

SYNOPSIS
     ##iinncclluuddee <>

     double
     mmooddff(double value, double *iptr);

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

     float
     mmooddffff(float value, float *iptr);

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

SSPPEECCIIAALL VVAALLUUEESS
     mmooddff(+-infinity, iptr) returns +-0 and stores +-infinity in the object
     pointed to by iptr.

     mmooddff(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 mmooddff() functions conform to ISO/IEC 9899:1999(E).

BSD                              July 24, 2003                             BSD