Warning: main(/www/www/htdocs/style/globals.php) [function.main]: failed to open stream: No such file or directory in /www/www/docs/6.4.1/neutrino/lib_ref/f/ferror.html on line 1
Warning: main() [function.include]: Failed opening '/www/www/htdocs/style/globals.php' for inclusion (include_path='.:/www/www/common:/www/www/php/lib/php') in /www/www/docs/6.4.1/neutrino/lib_ref/f/ferror.html on line 1
Warning: main(/www/www/htdocs/style/header.php) [function.main]: failed to open stream: No such file or directory in /www/www/docs/6.4.1/neutrino/lib_ref/f/ferror.html on line 8
Warning: main() [function.include]: Failed opening '/www/www/htdocs/style/header.php' for inclusion (include_path='.:/www/www/common:/www/www/php/lib/php') in /www/www/docs/6.4.1/neutrino/lib_ref/f/ferror.html on line 8
Test a stream's error flag
#include <stdio.h>
int ferror( FILE* fp );
- fp
- The stream whose error flag you want to test.
libc
Use the -l c option to
qcc
to link against this library.
This library is usually included automatically.
The ferror() function tests the error flag for the stream
specified by fp.
0 if the error flag isn't set, or nonzero if the error flag is set.
#include <stdio.h>
#include <stdlib.h>
int main( void )
{
FILE *fp;
int c;
fp = fopen( "file", "r" );
if( fp != NULL ) {
c = fgetc( fp );
if( ferror( fp ) ) {
printf( "Error reading file\n" );
}
}
fclose( fp );
return EXIT_SUCCESS;
}
ANSI,
POSIX 1003.1
Safety: | |
Cancellation point |
No |
Interrupt handler |
No |
Signal handler |
No |
Thread |
Yes |
clearerr(),
feof(),
fgetc(),
fgetchar(),
fgets(),
fgetwc(),
fgetws(),
getc(),
getc_unlocked(),
getchar(),
getchar_unlocked(),
gets(),
getw(),
getwc(),
getwchar(),
perror(),
strerror()
Warning: main(/www/www/htdocs/style/footer.php) [function.main]: failed to open stream: No such file or directory in /www/www/docs/6.4.1/neutrino/lib_ref/f/ferror.html on line 147
Warning: main() [function.include]: Failed opening '/www/www/htdocs/style/footer.php' for inclusion (include_path='.:/www/www/common:/www/www/php/lib/php') in /www/www/docs/6.4.1/neutrino/lib_ref/f/ferror.html on line 147