NAME
fmod,
fmodf,
fmodl —
floating-point remainder function
LIBRARY
Math Library (libm, -lm)
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.
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
math(3)
STANDARDS
The
fmod() function conforms to
ANSI
X3.159-1989 (“ANSI C89”).