remquo, remquof, remquol - remainder and part of quotient
#include <math.h> double remquo(double x, double y, int *quo); float remquof(float x, float y, int *quo); long double remquol(long double x, long double y, int *quo);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
These functions compute the remainder and part of the quotient upon
y. A few bits of the quotient are
stored via the
quo pointer. The remainder is returned as the
The value of the remainder is the same as that computed by the remainder(3) function.
The value stored via the
quo pointer has the sign of x /
y and agrees with the quotient in at least the low order 3
remquo(29.0, 3.0) returns -1.0 and might store
2. Note that the actual quotient might not fit in an integer.
On success, these functions return the same value as the analogous functions described in remainder(3).
y is a NaN, a NaN is returned.
x is an infinity, and
y is not a NaN, a domain
error occurs, and a NaN is returned.
y is zero, and
x is not a NaN, a domain error
occurs, and a NaN is returned.
See math_error(7) for information on how to determine whether an error has occurred when calling these functions.
The following errors can occur:
xis an infinity or
yis 0, and the other argument is not a NaN
An invalid floating-point exception (FE_INVALID) is raised.
These functions do not set
These functions first appeared in glibc in version 2.1.
For an explanation of the terms used in this section, see attributes(7).
|remquo(), remquof(), remquol()||Thread safety||MT-Safe|
C99, POSIX.1-2001, POSIX.1-2008.
This page is part of release 5.10 of the Linux
project. A description of the project, information about reporting bugs,
and the latest version of this page, can be found at