Manpage of REMQUO

REMQUO

Section: Linux Programmer's Manual (3)
Updated: 2016-03-15
Index
 

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():

_ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L
 

DESCRIPTION

These functions compute the remainder and part of the quotient upon division of xby y. A few bits of the quotient are stored via the quopointer. 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 quopointer has the sign of x / 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 in remainder(3).

If xor yis a NaN, a NaN is returned.

If xis an infinity, and yis not a NaN, a domain error occurs, and a NaN is returned.

If yis zero, and xis 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.  

ATTRIBUTES

For an explanation of the terms used in this section, see attributes(7).
InterfaceAttributeValue
remquo(), remquof(), remquol() Thread safetyMT-Safe
 

CONFORMING TO

C99, POSIX.1-2001, POSIX.1-2008.  

SEE ALSO

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


 

Index

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
ERRORS
VERSIONS
ATTRIBUTES
CONFORMING TO
SEE ALSO

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Time: 22:27:46 GMT, June 20, 2016