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

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

SYNOPSIS
     #include <math.h>

     double
     modf(double value, double *iptr);

DESCRIPTION
     The modf() function breaks the argument value into integral and fraction-
     al parts, each of which has the same sign as the argument.  It stores the
     integral part as a double in the object pointed to by iptr.

RETURN VALUES
     The modf() function returns the signed fractional part of value.

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

STANDARDS
     The modf() function conforms to ANSI X3.159-1989 (``ANSI C'').

OpenBSD 4.1                      June 4, 1993                                1
