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remquo(3)
REMQUO(3) Linux Programmer's Manual REMQUO(3)
NAME
remquo, remquof, remquol - remainder and part of quotient
SYNOPSIS
#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);
Link with -lm.
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
remquo(), remquof(), remquol():
_ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L
DESCRIPTION
These functions compute the remainder and part of the quotient upon di‐
vision of x by y. A few bits of the quotient are stored via the quo
pointer. The remainder is returned as the function result.
The value of the remainder is the same as that computed by the remain‐
der(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 bits.
For example, remquo(29.0, 3.0) returns -1.0 and might store 2. Note
that the actual quotient might not fit in an integer.
RETURN VALUE
On success, these functions return the same value as the analogous
functions described in remainder(3).
If x or y is a NaN, a NaN is returned.
If x is an infinity, and y is not a NaN, a domain error occurs, and a
NaN is returned.
If y is zero, and x is not a NaN, a domain error occurs, and a NaN is
returned.
ERRORS
See math_error(7) for information on how to determine whether an error
has occurred when calling these functions.
The following errors can occur:
Domain error: x is an infinity or y is 0, and the other argument is not
a NaN
An invalid floating-point exception (FE_INVALID) is raised.
These functions do not set errno.
VERSIONS
These functions first appeared in glibc in version 2.1.
ATTRIBUTES
For an explanation of the terms used in this section, see attrib‐
utes(7). allbox; lbw30 lb lb l l l. Interface Attribute Value T{
remquo(), remquof(), remquol() T} Thread safety MT-Safe
CONFORMING TO
C99, POSIX.1-2001, POSIX.1-2008.
SEE ALSO
fmod(3), logb(3), remainder(3)
COLOPHON
This page is part of release 5.02 of the Linux man-pages project. A
description of the project, information about reporting bugs, and the
latest version of this page, can be found at
https://www.kernel.org/doc/man-pages/.
GNU 2017-09-15 REMQUO(3)