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)