clearenv

Autres langues

Langue: ja

Version: 2001-10-17 (openSuse - 09/10/07)

Section: 3 (Bibliothèques de fonctions)

̾Á°

clearenv - ´Ä¶­ (environment) ¤ò¥¯¥ê¥¢¤¹¤ë

½ñ¼°


#include <stdlib.h>



int clearenv(void);

ÀâÌÀ

clearenv() ´Ø¿ô¤Ï¡¢Ì¾Á°¤ÈÃͤ¬ÁȤˤʤä¿Á´¤Æ¤Î´Ä¶­¤ò¥¯¥ê¥¢¤¹¤ë¡£ ¤µ¤é¤Ë³°ÉôÊÑ¿ô environ ¤ÎÃͤò NULL ¤Ë¤¹¤ë¡£

ÊÖ¤êÃÍ

clearenv() ´Ø¿ô¤Ï¡¢À®¸ù¤·¤¿¾ì¹ç¤Ï 0 ¤òÊÖ¤·¡¢ ¼ºÇÔ¤·¤¿¾ì¹ç¤Ï 0 °Ê³°¤òÊÖ¤¹¡£

¥Ð¡¼¥¸¥ç¥ó

libc4, libc5 ¤Ç¤Ï»ÈÍѤǤ­¤Ê¤¤¡£ glibc 2.0 °Ê¹ß¤Î glibc ¤Ç»ÈÍѤǤ­¤ë¡£

½àµò

(DG/UX, HP-UX, QNX, ¤Ê¤É¤Î) ¿¤¯¤Î Unix ·Ï OS¡£ (FORTRAN77 ¤Ø¤Î¥Ð¥¤¥ó¥Ç¥£¥ó¥°¤Ç¤¢¤ë) POSIX.9¡£ POSIX.1-1996 ¤Ç¤Ï clearenv() ¤È putenv(3) ¤ÏºÎÍѤµ¤ì¤Ê¤«¤Ã¤¿¤¬¡¢ Êý¿Ë¤¬Êѹ¹¤µ¤ì¡¢¤³¤Îɸ½àµ¬³Ê¤Î°Ê¹ß¤Î¹æ (B.4.6.1 ¤ò»²¾È) ¤Ç¤Ï ºÎÍѤµ¤ì¤ë¤³¤È¤Ë¤Ê¤Ã¤¿¡£ ¤·¤«¤· POSIX.1-2001 ¤Ç¤Ï putenv(3) ¤·¤«Äɲ䵤줺¡¢ clearenv() ¤ÎÄɲäÏÈݷ褵¤ì¤¿¡£

Ãí°Õ

¤³¤Î´Ø¿ô¤Ï¥»¥­¥å¥ê¥Æ¥£¤Ë¹Íθ¤·¤¿¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¤Ç»È¤ï¤ì¤ë¡£ ¤³¤Î´Ø¿ô¤¬»ÈÍѤǤ­¤Ê¤¤¾ì¹ç¤Ï¡¢

    environ = NULL;

¤È¤¤¤¦¤è¤¦¤ËÊÑ¿ô environ ¤òÀßÄꤹ¤ì¤Ð¤è¤¤¡£

DG/UX ¤È Tru64 man ¥Ú¡¼¥¸¤Ë¤Ï¼¡¤Î¤è¤¦¤Ëµ­¤µ¤ì¤Æ¤¤¤ë¡§ environ ¤¬ putenv(3), getenv(3), clearenv() ´Ø¿ô°Ê³°¤ÇÊѹ¹¤µ¤ì¤¿¾ì¹ç¡¢ clearenv() ¤Ï¥¨¥é¡¼¤òÊÖ¤·¡¢¥×¥í¥»¥¹´Ä¶­¤ÏÊѹ¹Á°¤Î¤Þ¤Þ¤Ë¤µ¤ì¤ë¡£

´ØÏ¢¹àÌÜ

getenv(3), putenv(3), setenv(3), unsetenv(3), environ(7)