GNU/Linux man pages
Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :
GNU/Linux |
Debian 6.0.6(Squeeze) |
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ldiv(3) |
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div, ldiv, lldiv, imaxdiv − compute quotient and remainder of an integer division
#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
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 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.
The div_t (etc.) structure.
SVr4, 4.3BSD, C89. The functions lldiv() and imaxdiv() were added in C99.
After
div_t q = div(−5, 3);
the values q.quot and q.rem are −1 and −2, respectively.
abs(3), remainder(3)
This page is part of release 3.27 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.
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ldiv(3) | |