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5.5.1 C´Ø¿ô¤Î°Ü¿¢À­

¤Û¤È¤ó¤É¤ÎÄ̾ï¤Î´Ø¿ô¤Ï¡¤Â­¤ê¤Ê¤¤¡¤¤Þ¤¿¤Ï¥Ð¥°¤¬¤¢¤ë¡¤¤Þ¤¿¤Ï¥¢¡¼¥­¥Æ¥¯¥Á¥ã ¤Ë¤è¤Ã¤ÆÀ©¸Â¤¬¤¢¤ë¤Ï¤º¤Ç¤¹¡¥¤³¤Î¥»¥¯¥·¥ç¥ó¤Ç¤Ï¡¤¤³¤ì¤é¤Î°Ü¿¢À­¤ÎÌäÂê¤òÌÜ Ï¿¤Ë¤·¤è¤¦¤È»×¤¤¤Þ¤¹¡¥ÄêµÁ¤«¤é¤¹¤ë¤È¡¤¤³¤Î¥ê¥¹¥È¤Ï¾ï¤ËÄɲä¬É¬ÍפǤ¹¡¥¤Ç ¤­¤ë¤À¤±´°Á´¤Ê¤â¤Î¤òÊݤĤ¿¤á¤Ë¡¤²æ¡¹¤Ø¤Î¼ê½õ¤±¤ò¤ª´ê¤¤¤·¤Þ¤¹¡¥

exit

¸Å¤¤¥Û¥¹¥È¤Ç¤Ï¡¤exit¤¬int¤òÊÖ¤¹¤â¤Î¤¬¤¢¤ë¤³¤È¤ò¸æÂ¸ÃΤǤ¹ ¤«¡©¤³¤ì¤Ï¡¤exit¤Î¤Û¤¦¤¬void¤è¤ê»þÂ夬¸Å¤¯¡¤int ¤ò ÊÖ¤¹¤È¤¤¤¦ÅÁÅý¤¬Ä¹¤¤´Ö¤¢¤Ã¤¿¤¿¤á¤Ç¤¹¡¥

putenv

POSIX¤Ç¤Ï¡¤putenv¤ÏÍ¿¤¨¤é¤ì¤¿Ê¸»úÎó¤òľÀÜenviron¤Ë½ñ¤­¹þ¤à ¤è¤¦¤Ë»ØÄꤷ¤Æ¤¤¤Þ¤¹¤¬¡¤¥·¥¹¥Æ¥à¤Ë¤è¤Ã¤Æ¤Ï¤½¤ÎÂå¤ï¤ê¤Ë¥³¥Ô¡¼¤¹¤ë¤â¤Î¤â¤¢ ¤ê¤Þ¤¹(Î㤨¤Ð¡¤glibc 2.0¤äBSD)¡¥¤½¤·¤Æ¡¤¥³¥Ô¡¼¤¬ºîÀ®¤µ¤ì¤¿¤È¤­¡¤ unsetenv¤Ï¤½¤ì¤ò²òÊü¤·¡¤¥á¥â¥ê¥ê¡¼¥¯¤Î¸¶°ø¤Ë¤Ê¤ê¤Þ¤¹(Î㤨¤Ð¡¤ FreeBSD 4¤¬¤½¤¦¤Ç¤¹)¡¥

POSIX¤Ç¤Ï¡¤putenv("FOO")¤Ï‘FOO’¤ò´Ä¶­ÊÑ¿ô¤«¤éºï½ü¤¹¤ë¤è¤¦¤Ë »ØÄꤷ¤Æ¤¤¤Þ¤¹¤¬¡¤¥·¥¹¥Æ¥à¤Ë¤è¤Ã¤Æ¤Ï(Î㤨¤ÐFreeBSD 4)¡¤¤³¤¦¤Ê¤é¤Ê¤¤¤Î¤Ç¡¤ Âå¤ï¤ê¤Ëunsetenv¤ò»ÈÍѤ·¤Æ²¼¤µ¤¤¡¥

MINGW¤Ç¤Ï¡¤putenv("FOO=")¤Î¸Æ¤Ó½Ð¤·¤Ç¡¤¶õ¤ÎÃͤòÁÞÆþ¤¹¤ëÂå¤ï¤ê¤Ë¡¤ ‘FOO’¤ò´Ä¶­ÊÑ¿ô¤«¤éºï½ü¤·¤Þ¤¹¡¥

signal¥Ï¥ó¥É¥é

Ä̾signal¤Ïvoid¤Î·¿¤òÊÖ¤¹´Ø¿ô¤Ø¤Î¥Ï¥ó¥É¥ë¤ò¼õ¤±¼è¤ê¤Þ¤¹ ¤¬¡¤¸Å¤¤¥·¥¹¥Æ¥à¤Ë¤Ï¡¤Âå¤ï¤ê¤Ëint¤òÍ׵᤹¤ë¤â¤Î¤â¤¢¤ê¤Þ¤¹¡¥¼ÂºÝ¤Ë ÊÖ¤µ¤ì¤ëint¤ÎÃͤòÍøÍѤ·¤Þ¤»¤ó¤¬¡¤¤³¤ì¤Ï´Ø¿ô¤Î¥×¥í¥È¥¿¥¤¥×¤ÎÍ׵᤬ °Û¤Ê¤ë¤À¤±¤Ç¤¹¡¥

¸½ºßÃΤäƤ¤¤ë¥·¥¹¥Æ¥à¤Ï¤¹¤Ù¤Ævoid¤ò¼õ¤±¼è¤ê¤Þ¤¹¡¥¤ª¤½¤é¤¯¡¤ int¤¬K&R C¤Ç¥µ¥Ý¡¼¥È¤µ¤ì¤Æ¤¤¤¿¤Î¤Ç¤¹¤¬¡¤¤â¤Á¤í¤óvoid¤ÏÍøÍÑ ²Äǽ¤Ç¤Ï¤¢¤ê¤Þ¤»¤ó¤Ç¤·¤¿¡¥AC_TYPE_SIGNAL (see Particular Types)¤Ï¡¤¤¹¤Ù¤Æ¤Î¾õ¶·¤ÇÀµ¤·¤¤·¿¤ò¹½ÃÛ¤¹¤ë¤¿¤á¤Ë»ÈÍѤ¹¤ë¤³¤È¤¬²Äǽ¤Ç¤¹¡¥

snprintf

ISO C99ɸ½à¤Ç¤Ï¡¤½ÐÎÏÇÛÎ󤬤¢¤Þ¤êÂ礭¤¯¤Ê¤¯¤½¤Î¾¤Î¥¨¥é¡¼¤¬Ìµ¤¤¾ì¹ç¡¤ snprintf¤Èvsnprintf¤Ï½ÐÎϤòÀڼΤơ¤À¸À®¤µ¤ì¤¿½ÐÎϤ¬É¬Í×¤È ¤¹¤ë¥Ð¥¤¥È¿ô¤òÊÖ¤¹¤³¤È¤Ë¤Ê¤Ã¤Æ¤¤¤Þ¤¹¡¥¸Å¤¤¥·¥¹¥Æ¥à¤Ç¤ÏÀÚ¤ê¼Î¤Æ¤é¤ì¤¿Ä¹¤µ ¤òÊÖ¤·¤¿¤ê(Î㤨¤Ð¡¤GNU C¥é¥¤¥Ö¥é¥ê2.0.x¤äIRIX 6.5)¡¤Éé¤Î ÃͤòÊÖ¤·¤¿¤ê(Î㤨¤Ð¡¤¤è¤ê¸Å¤¤¥Ð¡¼¥¸¥ç¥ó¤ÎGNU C¥é¥¤¥Ö¥é¥ê)¡¤ÀÚ ¤ê¼Î¤Æ¤é¤ì¤Ê¤«¤Ã¤¿¥Ð¥Ã¥Õ¥¡¤ÎŤµ¤òÊÖ¤·¤¿¤ê(Î㤨¤Ð32¥Ó¥Ã¥È¤ÎSolaris 7)¤· ¤Þ¤¹¡¥¤Þ¤¿¡¤¥Ð¥°¤Î¿¤¤¸Å¤¤¥·¥¹¥Æ¥à¤Ë¤Ï¥Ð¥Ã¥Õ¥¡¤ÎŤµ¤È¥ª¡¼¥Ð¡¼¥é¥ó¤ò̵»ë ¤¹¤ë¤â¤Î(Î㤨¤Ð64¥Ó¥Ã¥È¤ÎSoraris 7)¤â¤¢¤ê¤Þ¤¹¡¥

sprintf

ISO C¤Îɸ½à¤Ç¤Ï¡¤sprintf¤Èvsprintf¤Ï½ñ¤­¹þ¤Þ¤ì¤¿¥Ð¥¤¥È¿ô¤ò ÊÖ¤¹¤³¤È¤Ë¤Ê¤Ã¤Æ¤¤¤Þ¤¹¤¬¡¤¸Å¤¤¥·¥¹¥Æ¥à(Î㤨¤ÐSunOS 4)¤Ç¤Ï¤½¤ÎÂå¤ï¤ê¤Ë¥Ð¥Ã ¥Õ¥¡¤Ø¤Î¥Ý¥¤¥ó¥¿¤òÊÖ¤¹¤â¤Î¤â¤¢¤ê¤Þ¤¹¡¥

sscanf

ÍÍ¡¹¤Ê¸Å¤¤¥·¥¹¥Æ¥à¡¤Î㤨¤ÐHP-UX 9¤Ç¤Ï¡¤sscanf¤ÏÆþÎÏʸ»úÎó¤¬(¤¿¤È ¤¨¤½¤ì¤¬¼ÂºÝ¤Ë¤ÏÊѹ¹¤µ¤ì¤Ê¤¯¤Æ¤â)½ñ¤­¹þ¤ß²Äǽ¤Ç¤¢¤ë¤³¤È¤òÍ׵ᤷ¤Þ¤¹¡¥¤³ ¤ì¤Ï¡¤gcc¤ÏÄ̾¸ÇÄêʸ»úÎó¤òÆÉ¤ß¹þ¤ßÀìÍѤΥá¥â¥ê¤Ë½ñ¤­¹þ¤à¤Î ¤Ç(see Incompatibilities of GCC in Using and Porting the GNU Compiler Collection)¡¤¤½¤ì¤ò»ÈÍѤ¹¤ë¤È¤­ÌäÂê ¤Ë¤Ê¤ë¤Ï¤º¤Ç¤¹¡¥¾ì¹ç¤Ë¤è¤Ã¤Æ¤Ï¡¤¥Õ¥©¡¼¥Þ¥Ã¥Èʸ»úÎó¤¬ÌÀ¤é¤«¤ËÆÉ¤ß¹þ¤ßÀìÍÑ ¤Ç¤¢¤Ã¤Æ¤âÌäÂê¤Ë¤Ê¤ë¤Ï¤º¤Ç¤¹¡¥

strnlen

AIX 4.3¤Ï¡¤°Ê²¼¤Î·ë²Ì¤òÀ¸À®¤¹¤ë²õ¤ì¤¿¥Ð¡¼¥¸¥ç¥ó¤òÄ󶡤·¤Æ¤¤¤Þ ¤¹¡¥

strnlen ("foobar", 0) = 0
strnlen ("foobar", 1) = 3
strnlen ("foobar", 2) = 2
strnlen ("foobar", 3) = 1
strnlen ("foobar", 4) = 0
strnlen ("foobar", 5) = 6
strnlen ("foobar", 6) = 6
strnlen ("foobar", 7) = 6
strnlen ("foobar", 8) = 6
strnlen ("foobar", 9) = 6
sysconf

_SC_PAGESIZE¤Ïɸ½à¤Ç¤¹¤¬¡¤¸Å¤¤¥·¥¹¥Æ¥à(Î㤨¤ÐHP-UX 9)¤Ë¤Ï¡¤Âå¤ï¤ê ¤Ë_SC_PAGE_SIZE¤¬Â¸ºß¤·¤Þ¤¹¡¥¤³¤ì¤Ï#ifdef¤Ç¥Æ¥¹¥È²Äǽ¤Ç¤¹¡¥

unlink

POSIX¤Î»ÅÍͤǤϡ¤unlink¤Ï³«¤«¤ì¤Æ¤¤¤ë¥Õ¥¡¥¤¥ë¤Ø¤Î¥Ï¥ó¥É ¥ë¤¬¤Ê¤¯¤Ê¤Ã¤¿¸å¤Ç¥Õ¥¡¥¤¥ë¤òºï½ü¤¹¤ë¤è¤¦¤Ë½Ò¤Ù¤é¤ì¤Æ¤¤¤Þ¤¹¡¥Á´¤Æ¤ÎOS ¤¬ ¤³¤Îưºî¤ò¥µ¥Ý¡¼¥È¤·¤Æ¤¤¤ë¤ï¤±¤Ç¤Ï¤¢¤ê¤Þ¤»¤ó¡¥¤½¤Î¤¿¤á¡¤¥·¥¹¥Æ¥à¤¬ unlink¤òÄ󶡤·¤Æ¤¤¤ë¾ì¹ç¤Ç¤â¡¤³«¤¤¤Æ¤¤¤ë¥Õ¥¡¥¤¥ë¤ËÂФ·¤Æ¸Æ¤Ó½Ð¤· ¤Æ¤âÂç¾æÉפÀ¤È²¾Äꤷ¤¿°Ü¿¢¤ÏÉÔ²Äǽ¤Ç¤¹¡¥Î㤨¤Ð¡¤Windows 9x¤ÈME¤Ç¤Ï¡¤¤½¤Î ¤è¤¦¤Ê¸Æ¤Ó½Ð¤·¤Ï¼ºÇÔ¤·¤Þ¤¹¡¥DOS¤Ï²Äǽ¤Ç¤¹¤¬¡¤OS¤¬ºï½ü¤·¤¿¸å¤Ë ¥Õ¥¡¥¤¥ë¤Ø¤Î½ñ¤­¹þ¤ß¤¬½ªÎ»¤¹¤ë¤Î¤Ç¡¤¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤¬ÂÌÌܤˤʤê¤Þ¤¹¡¥

unsetenv

MINGW¤Ç¤Ï¡¤unsetenv¤¬ÍøÍÑÉÔ²Äǽ¤Ç¤¹¤¬¡¤putenv¤Ç¾å½Ò¤·¤¿¤è ¤¦¤Ë¡¤ÊÑ¿ô‘FOO’¤Ïputenv("FOO=")¤Î¸Æ¤Ó½Ð¤·¤Çºï½ü²Äǽ¤Ç¤¹¡¥

va_copy

ISO C99ɸ½à¤Ç¤Ï¡¤va_list¤ò¥³¥Ô¡¼¤¹¤ë¤¿¤áva_copy¤òÄ󶡤·¤Æ ¤¤¤Þ¤¹¡¥¸Å¤¤´Ä¶­¤Ç¤âÍøÍѲÄǽ¤«¤â¤·¤ì¤Þ¤»¤ó¤¬¡¤¤ª¤½¤é¤¯¤Ï __va_copy(Î㤨¤Ð¸·Ì©¤ÊC89¥â¡¼¥É)¤Ç¤·¤ç¤¦¡¥¤³¤ì¤é¤Ï#ifdef ¤Ç¥Æ¥¹¥È²Äǽ¤Ç¤¹¡¥memcpy (&dst, &src, sizeof(va_list))¤ÇÂåÂØ¤¹¤ë ¤³¤È¤ÇºÇÂç¤Î°Ü¿¢À­¤È¤Ê¤ë¤Ç¤·¤ç¤¦¡¥

va_list

va_list¤Ï¥Ý¥¤¥ó¥¿¤Ç¤¢¤ëɬÍפϤ¢¤ê¤Þ¤»¤ó¡¥struct(Î㤨¤Ð Alpha¤Îgcc)¤Ë¤¹¤ë¤³¤È¤¬²Äǽ¤Ç¡¤¤½¤ì¤ÏNULL¤Ç¤Ï°Ü¿¢À­¤¬Ìµ ¤¤¤³¤È¤ò°ÕÌ£¤·¤Þ¤¹¡¥ÇÛÎó(Î㤨¤ÐPowerPC¤Ç¥³¥ó¥Õ¥£¥°¥ì¡¼¥·¥ç¥ó¤µ¤ì¤¿ gcc)¤â²Äǽ¤Ç¡¤¤½¤ì¤Ï´Ø¿ô¤Î¥Ñ¥é¥á¡¼¥¿¤È¤·¤Æ¸ú²ÌŪ¤Ë»²¾È¸Æ¤Ó½Ð¤· ¤¬²Äǽ¤Ç¤¢¤ê¡¤¥é¥¤¥Ö¥é¥ê¥ë¡¼¥Á¥ó¤Ç¸Æ¤Ó½Ð¤·¤¬ÊÖ¤¹Ãͤò½¤Àµ¤¹¤ë²ÄǽÀ­¤¬¤¢¤ë (Î㤨¤ÐGNU C¥é¥¤¥Ö¥é¥ê2.1¤Îvsnprintf)¤³¤È¤ò°ÕÌ£¤·¤Þ¤¹¡¥

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