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 argument. 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 9899:2011.
BSD December 11, 2006 BSD
Mac OS X 10.9.1 - Generated Wed Jan 8 20:34:01 CST 2014