остаток и часть частного (remainder and part of quotient)
Имя (Name)
remquo, remquof, remquol - remainder and part of quotient
Синопсис (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():
_ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L
Описание (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.
Возвращаемое значение (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.
Ошибки (Error)
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.
Версии (Versions)
These functions first appeared in glibc in version 2.1.
Атрибуты (Attributes)
For an explanation of the terms used in this section, see
attributes(7).
┌──────────────────────────────────────┬───────────────┬─────────┐
│Interface │ Attribute │ Value │
├──────────────────────────────────────┼───────────────┼─────────┤
│remquo(), remquof(), remquol() │ Thread safety │ MT-Safe │
└──────────────────────────────────────┴───────────────┴─────────┘
Стандарты (Conforming to)
C99, POSIX.1-2001, POSIX.1-2008.
Смотри также (See also)
fmod(3), logb(3), remainder(3)
