Manual browser: modff(3)

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MODF(3) Library Functions Manual MODF(3)

NAME

modfextract signed integral and fractional values from floating-point number

LIBRARY

Math Library (libm, -lm)

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 C89”).
March 21, 2006 NetBSD 7.0