Linux Certif

Toute la documentation sur la certification Linux LPI

strptime

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strptime - ʸ»úÎó¤Ç¤¢¤é¤ï¤µ¤ì¤Æ¤¤¤ë»þ´Ö¤ò tm ¹½Â¤ÂΤλþ´Ö¤ËÊÑ´¹¤¹¤ë

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#define _XOPEN_SOURCE /* glibc2 ¤Ç¤Ï¡¢¤³¤ì¤¬É¬Íס£ */
#include <time.h>

char *strptime(const char *s, const char *format, struct tm *tm);

ÀâÌÀ

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Í×ÁÇÊ̤λþ¹ï¹½Â¤ÂÎ tm ¤Ï <time.h> Æâ¤Ç°Ê²¼¤ÎÍͤËÄêµÁ¤µ¤ì¤Æ¤¤¤ë¡£

struct tm {

    int tm_sec;        /* ÉÃ */

    int tm_min;        /* ʬ */

    int tm_hour;       /* »þ´Ö */

    int tm_mday;       /* Æü */

    int tm_mon;        /* ·î */

    int tm_year;       /* ǯ */

    int tm_wday;       /* ÍËÆü */

    int tm_yday;       /* ǯÆâÄÌ»»Æü */

    int tm_isdst;      /* ²Æ»þ´Ö */

};

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SUSv2, POSIX.1-2001.

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¤³¤Î´Ø¿ô¤Ï¡¢libc 4.6.8 °Ê¹ß¤Ç»ÈÍѤǤ­¤ë¡£ Linux ¤Î libc4 ¤È libc5 ¤Î¥¤¥ó¥¯¥ë¡¼¥É¥Õ¥¡¥¤¥ë¤Ï¡¢ ¤³¤Î´Ø¿ô¤Î¥×¥í¥È¥¿¥¤¥×¤ò¾ï¤ËÄêµÁ¤¹¤ë¡£ glibc2 ¤Î¥¤¥ó¥¯¥ë¡¼¥É¥Õ¥¡¥¤¥ë¤Ï¡¢ _XOPEN_SOURCE ¤Þ¤¿¤Ï _GNU_SOURCE ¤¬ÄêµÁ¤µ¤ì¤¿¾ì¹ç¤Î¤ß¡¢ ¤³¤Î´Ø¿ô¤Î¥×¥í¥È¥¿¥¤¥×¤òÄ󶡤¹¤ë¡£

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glibc ¤Ç¤ÎÃí°Õ

ÂоÝÀ­¤Î¤¿¤á¤Ë¡¢glibc ¤Ç¤Ï strptime() ¤Ë strftime(3) ¤ÈƱ¤¸¥Õ¥©¡¼¥Þ¥Ã¥Èʸ»ú¤ò¥µ¥Ý¡¼¥È¤µ¤»¤è¤¦¤È¤·¤Æ¤¤¤ë¡£ ¿¤¯¤Î¾ì¹ç¡¢Âбþ¤¹¤ë¥Õ¥£¡¼¥ë¥É¤¬²ò¼á¤µ¤ì¤ë¤¬¡¢ tm ¥Õ¥£¡¼¥ë¥É¤ÏÊѹ¹¤µ¤ì¤Ê¤¤¡£ »ÈÍѲÄǽ¤Ê¥Õ¥©¡¼¥Þ¥Ã¥Èʸ»ú¤ò°Ê²¼¤Ë¼¨¤¹¡£

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ƱÍͤˤ·¤Æ¡¢ strftime(3) ¤Î GNU ÈǤǤγÈÄ¥¤Î¤¿¤á¤Ë¡¢ %k ¤Ï %H¡¢%l ¤Ï %I¡¢%P ¤Ï %p ¤ÈƱ¤¸¤¯°·¤ï¤ì¤ë¡£ ¤µ¤é¤Ë

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GNU libc ¤Ë¤ª¤±¤ë¼ÂÁõ¤Ç¤Ï¡¢2 ¤Ä¤Î¥Õ¥£¡¼¥ë¥É´Ö¤Î¶õÇò¤ÏɬÍפʤ¤¡£

Îã

°Ê²¼¤ÎÎã¤Ï strptime() ¤È strftime(3) ¤Î»ÈÍÑË¡¤ò¼¨¤·¤Æ¤¤¤ë¡£

#include <stdio.h>

#include <time.h>



int

main(void)

{

    struct tm tm;

    char buf[255];



    strptime("2001-11-12 18:31:01", "%Y-%m-%d %H:%M:%S", &tm);

    strftime(buf, sizeof(buf), "%d %b %Y %H:%M", &tm);

    puts(buf);

    exit(EXIT_SUCCESS);

}

´ØÏ¢¹àÌÜ

time(2), getdate(3), scanf(3), setlocale(3), strftime(3), feature_test_macros(7)