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**NAME**

remquo, remquof, remquol - remainder and part of quotient

**SYNOPSIS**

#include<math.h>doubleremquo(doublex,doubley,int*quo);floatremquof(floatx,floaty,int*quo);longdoubleremquol(longdoublex,longdoubley,int*quo);Link with-lm. Feature Test Macro Requirements for glibc (seefeature_test_macros(7)):remquo(),remquof(),remquol(): _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L

**DESCRIPTION**

These functions compute the remainder and part of the quotient upon division ofxbyy. A few bits of the quotient are stored via thequopointer. 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 thequopointer has the sign ofx/yand 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 inremainder(3). Ifxoryis a NaN, a NaN is returned. Ifxis an infinity, andyis not a NaN, a domain error occurs, and a NaN is returned. Ifyis zero, andxis not a NaN, a domain error occurs, and a NaN is returned.

**ERRORS**

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:xis an infinity oryis 0, and the other argument is not a NaN An invalid floating-point exception (FE_INVALID) is raised. These functions do not seterrno.

**VERSIONS**

These functions first appeared in glibc in version 2.1.

**ATTRIBUTES**

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

**CONFORMING** **TO**

C99, POSIX.1-2001, POSIX.1-2008.

**SEE** **ALSO**

fmod(3),logb(3),remainder(3)

**COLOPHON**

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