fmod,
fmodf
[floating-point
remainder (modulo)]
SYNOPSIS
#include <math.h> double fmod(double x, double y) float fmodf(float x, float y)
DESCRIPTION
The fmod
and fmodf
functions compute the floating-point
remainder of x/y
(x
modulo y).
RETURNS
The fmod
function returns the value x – i
y, for the largest integer i
such that, if y
is nonzero, the result has the same
sign as x
and magnitude less than the magnitude
of y.
fmod(x,0) returns NaN, and sets errno to EDOM.
You can modify error treatment for these functions using matherr.
COMPLIANCE
fmod
is ANSI C. fmodf
is an extension.