NAME
modf — extract signed integral and fractional values from floating-point number
SYNOPSIS
#include <math.h>double
modf(double value, double *iptr);
float
modff(float value, float *iptr);
DESCRIPTION
The modf() function breaks the argument value into integral and fractional 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.
STANDARDS
The modf() function conforms to ANSI X3.159-1989 (“ANSI C”).