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remquo(3m) [opensolaris man page]

remquo(3M)						  Mathematical Library Functions						remquo(3M)

NAME
remquo, remquof, remquol - remainder functions SYNOPSIS
c99 [ flag... ] file... -lm [ library... ] #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); DESCRIPTION
The remquo(), remquof(), and remquol() functions compute the same remainder as the remainder(), remainderf(), and remainderl() functions, respectively. See remainder(3M). In the object pointed to by quo, they store a value whose sign is the sign of x/y and whose magnitude is congruent modulo 2^n to the magnitude of the integral quotient of x/y, where n is an integer greater than or equal to 3. RETURN VALUES
These functions return x REM y. If x or y is NaN, a NaN is returned. If x is +-Inf or y is 0 and the other argument is non-NaN, a domain error occurs and a NaN is returned. ERRORS
These functions will fail if: Domain Error The x argument is Inf or the y argument is 0 and the other argument is non-NaN. If the integer expression (math_errhandling & MATH_ERREXCEPT) is non-zero, then the invalid floating-point exception is raised. USAGE
An application wanting to check for exceptions should call feclearexcept(FE_ALL_EXCEPT) before calling these functions. On return, if fetestexcept(FE_INVALID | FE_DIVBYZERO | FE_OVERFLOW | FE_UNDERFLOW) is non-zero, an exception has been raised. An application should either examine the return value or check the floating point exception flags to detect exceptions. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ SEE ALSO
feclearexcept(3M), fetestexcept(3M), math.h(3HEAD), remainder(3M), attributes(5), standards(5) SunOS 5.11 12 Jul 2006 remquo(3M)

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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(): _XOPEN_SOURCE >= 600 || _ISOC99_SOURCE; or cc -std=c99 DESCRIPTION
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. CONFORMING TO
C99, POSIX.1-2001. SEE ALSO
fmod(3), logb(3), remainder(3) COLOPHON
This page is part of release 3.25 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/. GNU
2008-08-11 REMQUO(3)
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