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

Attributes

       For an explanation of the terms used in this section, see attributes(7).
       ┌─────────────────────────────────────────────────────────────────────────────┬───────────────┬─────────┐
       │ InterfaceAttributeValue   │
       ├─────────────────────────────────────────────────────────────────────────────┼───────────────┼─────────┤
       │ div(), ldiv(), lldiv(), imaxdiv()                                           │ Thread safety │ MT-Safe │
       └─────────────────────────────────────────────────────────────────────────────┴───────────────┴─────────┘

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 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.

Examples

       After

           div_t q = div(-5, 3);

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

History

       POSIX.1-2001, C89, C99, SVr4, 4.3BSD.

       lldiv() and imaxdiv() were added in C99.

Library

       Standard C library (libc, -lc)

Name

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

Return Value

       The div_t (etc.) structure.

See Also

abs(3), remainder(3)

Linux man-pages 6.9.1                              2024-05-02                                             div(3)

Standards

       C11, POSIX.1-2008.

Synopsis

#include<stdlib.h>div_tdiv(intnumerator,intdenominator);ldiv_tldiv(longnumerator,longdenominator);lldiv_tlldiv(longlongnumerator,longlongdenominator);#include<inttypes.h>imaxdiv_timaxdiv(intmax_tnumerator,intmax_tdenominator);

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

       lldiv():
           _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L