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/s/strerror.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/s/strerror.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/s/strerror.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/s/strerror.html on line 8
Convert an error number into an error message
#include <string.h>
char* strerror( int errnum );
- errnum
- The error number that you want the message for.
This function works for any valid
errno
value.
libc
Use the -l c option to
qcc
to link against this library.
This library is usually included automatically.
The strerror() function maps the error number contained in
errnum to an error message.
A pointer to the error message.
|
Don't modify the string that this function returns. |
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <stdlib.h>
int main( void )
{
FILE *fp;
fp = fopen( "file.name", "r" );
if( fp == NULL ) {
printf( "Unable to open file: %s\n",
strerror( errno ) );
}
return EXIT_SUCCESS;
}
ANSI,
POSIX 1003.1
Safety: | |
Cancellation point |
No |
Interrupt handler |
No |
Signal handler |
Yes |
Thread |
Yes |
errno,
perror(),
stderr
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/s/strerror.html on line 145
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/s/strerror.html on line 145