These functions compute the remainder and part of the
quotient upon division 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 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 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
attributes(7).

This page is part of release 5.11 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/.

Copyright 2002 Walter Harms (walter.harmsinformatik.uni-oldenburg.de)
and Copyright 2008, Linux Foundation, written by Michael Kerrisk
<mtk.manpagesgmail.com>

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