div

Autres langues

Langue: ja

Autres versions - même langue

Version: 2003-11-01 (openSuse - 09/10/07)

Section: 3 (Bibliothèques de fonctions)

Sommaire

̾Á°

div, ldiv, lldiv, imaxdiv - integer ·¿¤Î³ä»»¤Î¾¦¤È;¤ê¤ò·×»»¤¹¤ë

½ñ¼°


#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);

ÀâÌÀ

div() ´Ø¿ô¤Ï numerator/denominator ¤ÎÃͤò·×»»¤¹¤ë¡£ ¾¦¤È;¤ê¤Ï¡¢ quot (¾¦) ¤È rem (;¤ê) ¤È¤¤¤¦Ì¾Á°¤Î 2 ¤Ä¤Î integer ·¿¥á¥ó¥Ð¤ò´Þ¤à div_t ¤È¤¤¤¦¹½Â¤ÂΤÎÃæ¤ËÊÖ¤µ¤ì¤ë (¥á¥ó¥Ð¤Î½çÈÖ¤ÏÉÔÄê¤Ç¤¢¤ë)¡£ ¾¦¤Ï 0 ¤Ë¶á¤¤Êý¤Ë´Ý¤á¤é¤ì¤ë¡£ ·ë²Ì¤Ï quot*denominator+rem = numerator ¤òËþ¤¿¤¹¡£

ldiv(), lldiv(), imaxdiv() ´Ø¿ô¤ÏƱÍͤÊÆ°ºî¤ò¤·¡¢ ¾å¤Ë¼¨¤·¤¿·¿¤Î¿ôÃͤò³ä»»¤·¤Æ¡¢¾å¤Ë¼¨¤·¤¿Ì¾Á°¤Î¹½Â¤ÂΤ˷ë²Ì¤òÊÖ¤¹¡£ ¤É¤Î¾ì¹ç¤Ç¤â¥Õ¥£¡¼¥ë¥É quot ¤È rem ¤Ï¡¢ ´Ø¿ô¤Î°ú¤­¿ô¤ÈƱ¤¸·¿¤Ç¤¢¤ë¡£

ÊÖ¤êÃÍ

div_t (¤Ê¤É¤Î) ¹½Â¤ÂΡ£

½àµò

SVr4, 4.3BSD, C89. ´Ø¿ô lldiv() ¤È imaxdiv() ¤Ï C99 ¤ËÄɲ䵤줿¡£

Îã


        div_t q = div(-5, 3);
¤ò·×»»¤¹¤ë¤È¡¢q.quot ¤È q.rem ¤Ï¤½¤ì¤¾¤ì -1 ¤È -2 ¤Ë¤Ê¤ë¡£

´ØÏ¢¹àÌÜ

abs(3), remainder(3)