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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 || _POSIX_C_SOURCE >= 200112L;
           or cc -std=c99

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

       The ldiv(), lldiv(), and imaxdiv() functions do the same, dividing numbers  of  the  indi‐
       cated  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.

ATTRIBUTES
   Multithreading (see pthreads(7))
       The div(), ldiv(), lldiv(), and imaxdiv() functions are thread-safe.

CONFORMING TO
       SVr4, 4.3BSD, C89. C99.  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 3.74 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 http://www.kernel.org/doc/man-pages/.



                                            2013-07-05                                     DIV(3)


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