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FERROR
Section: Linux Programmer's Manual (3)Updated: 22 March 2001
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clearerr, feof, ferror, fileno - ¥¹¥È¥ê¡¼¥à¥¹¥Æ¡¼¥¿¥¹¤Î¥Á¥§¥Ã¥¯¤È¥ê¥»¥Ã¥È½ñ¼°
#include <stdio.h>
void clearerr( FILE *stream);
int feof( FILE *stream);
int ferror( FILE *stream);
int fileno( FILE *stream);
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´Ø¿ô clearerr ¤Ï stream ¤Ç¼¨¤µ¤ì¤ë¥¹¥È¥ê¡¼¥à¤Î EOF(end-of-file) »Ø¼¨»Ò¤È¥¨¥é¡¼»Ø¼¨»Ò¤ò¥¯¥ê¥¢¤¹¤ë¡£´Ø¿ô feof ¤Ï stream ¤Ç¼¨¤µ¤ì¤ë¥¹¥È¥ê¡¼¥à¤Î EOF »Ø¼¨»Ò¤ò¥Æ¥¹¥È¤·¡¢¥»¥Ã¥È¤µ¤ì¤Æ¤¤¤ì¤Ð 0 °Ê³°¤Î¿ô ¤òÊÖ¤¹¡£EOF »Ø¼¨»Ò¤Ï¡¢´Ø¿ô clearerr ¤Ë¤è¤Ã¤Æ¤Î¤ß¥¯¥ê¥¢¤¹¤ë»ö¤¬¤Ç¤¤ë¡£
´Ø¿ô ferror ¤Ï stream ¤Ç¼¨¤µ¤ì¤ë¥¹¥È¥ê¡¼¥à¤Î¥¨¥é¡¼»Ø¼¨»Ò¤ò¥Æ¥¹¥È¤·¡¢¥»¥Ã¥È¤µ¤ì¤Æ¤¤¤ì¤Ð 0 °Ê³°¤Î¿ô ¤òÊÖ¤¹¡£¥¨¥é¡¼»Ø¼¨»Ò¤Ï¡¢´Ø¿ô clearerr ¤Ë¤è¤Ã¤Æ¤Î¤ß¥ê¥»¥Ã¥È¤¹¤ë»ö¤¬¤Ç¤¤ë¡£
´Ø¿ô fileno ¤Ï¡¢°ú¿ô stream ¤òÄ´¤Ù¡¢¤½¤ÎÀ°¿ô¤Î¥Ç¥£¥¹¥¯¥ê¥×¥¿¡¼¤òÊÖ¤¹¡£
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¤³¤ì¤é¤Î´Ø¿ô¤Ï¼ºÇÔ¤¹¤Ù¤¤Ç¤Ï¤Ê¤¯¡¢¤Þ¤¿¡¢³°ÉôÊÑ¿ô errno ¤ËÃͤò¥»¥Ã¥È¤·¤Ê¤¤¡£ (¤·¤«¤·¡¢ fileno ´Ø¿ô¤Î¾ì¹ç¤Ç¡¢°ú¿ô¤¬Í¸ú¤Ê¥¹¥È¥ê¡¼¥à¤Ç¤Ê¤«¤Ã¤¿¾ì¹ç¡¢ ´Ø¿ô¤Ï -1 ¤òÊÖ¤·¡¢ errno ¤Ë EBADF ¤òÀßÄꤷ¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¡£)½àµò
´Ø¿ô clearerr¡¢ feof¡¢ ferror ¤Ï X3.159-1989 (``ANSI C'')¤Ë½àµò¤·¤Æ¤¤¤ë¡£´ØÏ¢¹àÌÜ
open(2), stdio(3)