Files
Linux-C-Notes/C13-IO/stdio/fopen.c
2024-05-27 02:33:10 +08:00

31 lines
613 B
C

#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int main( )
{
FILE *fp;
fp = fopen("tmp", "r");
if (NULL == fp)
{
// fprintf(stderr, "fopen() failed! errno = %d\n", errno);
// out: fopen() failed! errno = 2
/* errno:定义路径 /usr/include/asm-generic/errno-base.h */
// perror("fopen()");
// out: fopen(): No such file or directory
fprintf(stderr, "fopen(): %s\n", strerror(errno));
// out: fopen(): No such file or directory
exit(1);
}
puts("OK!");
fclose(fp);
exit(0);
}