remquo, remquof, remquol - remainder and part of quotient
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
_POSIX_C_SOURCE >= 200112L
These functions compute the remainder and part of the quotient upon division of
. 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
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.
On success, these functions return the same value as the analogous functions
described in remainder
is a NaN, a NaN is returned.
is an infinity, and y
is not a NaN, a domain error occurs,
and a NaN is returned.
is zero, and x
is not a NaN, a domain error occurs, and a NaN
(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
These functions first appeared in glibc in version 2.1.
For an explanation of the terms used in this section, see attributes
|remquo (), remquof (), remquol ()
C99, POSIX.1-2001, POSIX.1-2008.