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



NAME
       div, ldiv, lldiv, imaxdiv - compute quotient and remainder of an integer division

SYNOPSIS
       #include <stdlib.h>

       div_t div(int numerator, int denominator);
       ldiv_t ldiv(long numerator, long denominator);
       lldiv_t lldiv(long long numerator, long long denominator);

       #include <inttypes.h>

       imaxdiv_t imaxdiv(intmax_t numerator, intmax_t denominator);

   Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

       lldiv(): _XOPEN_SOURCE >= 600 || _ISOC99_SOURCE; or cc -std=c99

DESCRIPTION
       The  div() function computes the value numerator/denominator and returns the quotient and remainder in a struc-
       ture named div_t that contains two integer members (in unspecified order) named quot and rem.  The quotient  is
       rounded towards zero.  The result satisfies quot*denominator+rem = numerator.

       The  ldiv(), lldiv(), and imaxdiv() functions do the same, dividing numbers of the indicated type and returning
       the result in a structure of the indicated name, in all cases with fields quot and rem of the same type as  the
       function arguments.

RETURN VALUE
       The div_t (etc.) structure.

CONFORMING TO
       SVr4, 4.3BSD, C89.  The functions lldiv() and imaxdiv() were added in C99.

EXAMPLE
       After

               div_t q = div(-5, 3);

       the values q.quot and q.rem are -1 and -2, respectively.

SEE ALSO
       abs(3), remainder(3)

COLOPHON
       This  page  is part of release 3.22 of the Linux man-pages project.  A description of the project, and informa-
       tion about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.



                                  2007-07-26                            DIV(3)