NAME
fmod, fmodf,
fmodl —
floating-point remainder
functions
SYNOPSIS
#include
<math.h>
double
fmod(double
x, double y);
float
fmodf(float
x, float y);
long double
fmodl(long
double x, long double
y);
DESCRIPTION
The
fmod()
function computes the floating-point remainder of
x/y. The
fmodf()
function is a single precision version of fmod().
The
fmodl()
function is an extended precision version of
fmod().
RETURN VALUES
The fmod(),
fmodf() and fmodl()
functions return the value
x-i*y, for
some integer i such that, if y is
non-zero, the result has the same sign as x and
magnitude less than the magnitude of y. If
y is zero, whether a domain error occurs or the
fmod() function returns zero is
implementation-defined.
SEE ALSO
STANDARDS
The fmod() function conforms to
ANSI X3.159-1989
(“ANSI C89”).
HISTORY
An fmod() function first appeared in
Version 5 AT&T UNIX.