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man:remquof

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
     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 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
     attributes(7).
     allbox;  lbw30  lb  lb  l  l l.  Interface Attribute Value T{ remquo(),
     remquof(), remquol() T}   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 4.16 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)

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