3. Library calls (functions within program libraries)
REMQUO
Section: Linux Programmer's Manual (3)Updated: 20150419
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NAME
remquo, remquof, remquol  remainder and part of quotientSYNOPSIS
#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 
_POSIX_C_SOURCE >= 200112L;
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 floatingpoint 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).Interface  Attribute  Value 
remquo(), remquof(), remquol()  Thread safety  MTSafe 
CONFORMING TO
C99, POSIX.12001, POSIX.12008.SEE ALSO
fmod(3), logb(3), remainder(3)COLOPHON
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