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remquo(3) — Linux manual page

NAME \|LIBRARY \|SYNOPSIS \|DESCRIPTION \|RETURN VALUE \|ERRORS \|ATTRIBUTES \|STANDARDS \|HISTORY \|SEE ALSO \|COLOPHON

remquo(3)                Library Functions Manualremquo(3)

NAME top

       remquo, remquof, remquol - remainder and part of quotient

LIBRARY top

       Math library (libm,-lm)

SYNOPSIS top

#include <math.h>double remquo(doublex, doubley, int *quo);float remquof(floatx, floaty, int *quo);long double remquol(long doublex, long doubley, int *quo);   Feature Test Macro Requirements for glibc (seefeature_test_macros(7)):remquo(),remquof(),remquol():           _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L

DESCRIPTION top

       These functions compute the remainder and part of the quotient       upon division ofx byy.  A few bits of the quotient are stored       via thequo pointer.  The remainder is returned as the function       result.       The value of the remainder is the same as that computed by theremainder(3) function.       The value stored via thequo pointer has the sign ofx / 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 top

       On success, these functions return the same value as the analogous       functions described inremainder(3).       Ifx ory is a NaN, a NaN is returned.       Ifx is an infinity, andy is not a NaN, a domain error occurs,       and a NaN is returned.       Ify is zero, andx is not a NaN, a domain error occurs, and a NaN       is returned.

ERRORS top

       Seemath_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 ory is 0, and the other argument       is not a NaN.              An invalid floating-point exception (FE_INVALID) is raised.       These functions do not seterrno.

ATTRIBUTES top

       For an explanation of the terms used in this section, seeattributes(7).       ┌──────────────────────────────────────┬───────────────┬─────────┐       │Interface│Attribute│Value│       ├──────────────────────────────────────┼───────────────┼─────────┤       │remquo(),remquof(),remquol()       │ Thread safety │ MT-Safe │       └──────────────────────────────────────┴───────────────┴─────────┘

STANDARDS top

       C11, POSIX.1-2008.

HISTORY top

       glibc 2.1.  C99, POSIX.1-2001.

COLOPHON top

       This page is part of theman-pages (Linux kernel and C library       user-space interface documentation) project.  Information about       the project can be found at        ⟨https://www.kernel.org/doc/man-pages/⟩.  If you have a bug report       for this manual page, see       ⟨https://git.kernel.org/pub/scm/docs/man-pages/man-pages.git/tree/CONTRIBUTING⟩.       This page was obtained from the tarball man-pages-6.15.tar.gz       fetched from       ⟨https://mirrors.edge.kernel.org/pub/linux/docs/man-pages/⟩ on       2025-08-11.  If you discover any rendering problems in this HTML       version of the page, or you believe there is a better or more up-       to-date source for the page, or you have corrections or       improvements to the information in this COLOPHON (which isnot       part of the original manual page), send a mail to       man-pages@man7.orgLinux man-pages 6.15            2025-05-17remquo(3)

Pages that refer to this page:fma(3), remainder(3)

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