remquo

REMQUO(3)                  Linux Programmer's Manual                 REMQUO(3)

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 di-
       vision 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 remain-
       der(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.

VERSIONS
       These functions first appeared in glibc in version 2.1.

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

       +-------------------------------+---------------+---------+
       |Interface                      | Attribute     | Value   |
       +-------------------------------+---------------+---------+
       |remquo(), remquof(), remquol() | Thread safety | MT-Safe |
       +-------------------------------+---------------+---------+
CONFORMING TO
       C99, POSIX.1-2001, POSIX.1-2008.

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

COLOPHON
       This page is part of release 5.05 of the Linux  man-pages  project.   A
       description  of  the project, information about reporting bugs, and the
       latest    version    of    this    page,    can     be     found     at
       https://www.kernel.org/doc/man-pages/.

GNU                               2017-09-15                         REMQUO(3)