#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <assert.h>
#include <string.h>
#define DEBUG
#ifdef DEBUG
#define debug_print(fmt, ...) \
do { fprintf(stderr, "%s:%d:%s(): " fmt, __FILE__, \
__LINE__, __func__, __VA_ARGS__); } while (0)
#else
#define debug_print(fmt,...)
#endif
#define FILENAME "test.txt"
int main(void) {
FILE
*fp
= fopen(FILENAME
,"r"); if(!fp) {
debug_print
("%s: %s\n",strerror(errno
),FILENAME
); }
return 0;
}
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