GNU/Linux man pages
Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :
GNU/Linux |
RedHat 9.0(Shrike) |
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clearerr(3) |
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clearerr, feof, ferror, fileno − check and reset stream status
#include <stdio.h>
void
clearerr(FILE *stream);
int feof(FILE *stream);
int ferror(FILE *stream);
int fileno(FILE *stream);
The function clearerr clears the end-of-file and error indicators for the stream pointed to by stream.
The function feof tests the end-of-file indicator for the stream pointed to by stream, returning non-zero if it is set. The end-of-file indicator can only be cleared by the function clearerr.
The function ferror tests the error indicator for the stream pointed to by stream, returning non-zero if it is set. The error indicator can only be reset by the clearerr function.
The function fileno examines the argument stream and returns its integer descriptor.
For non-locking counterparts, see unlocked_stdio(3).
These functions should not fail and do not set the external variable errno. (However, in case fileno detects that its argument is not a valid stream, it must return −1 and set errno to EBADF.)
The functions clearerr, feof, and ferror conform to X3.159-1989 (’’ANSI C’’).
open(2), unlocked_stdio(3), stdio(3)
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clearerr(3) | |