remquo(3)                  Library Functions Manual                  remquo(3)

NAME
       remquo, remquof, remquol - remainder and part of quotient

LIBRARY
       Math library (libm, -lm)

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);

   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 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.

ATTRIBUTES
       For an explanation of the terms used in this section, see
       attributes(7).

       +--------------------------------------------+---------------+---------+
       |Interface                                   | Attribute     | Value   |
       +--------------------------------------------+---------------+---------+
       |remquo (), remquof (), remquol ()           | Thread safety | MT-Safe |
       +--------------------------------------------+---------------+---------+
STANDARDS
       C11, POSIX.1-2008.

HISTORY
       glibc 2.1.  C99, POSIX.1-2001.

SEE ALSO
       fmod(3), logb(3), remainder(3)

Linux man-pages 6.7               2023-10-31                         remquo(3)