#include<stdlib.h>
#include<stdio.h>
inline void error_exit(int errval, char *message) {
    printf("Error %d: %s\n",errval,message);
    exit(errval);
}
void main(void) {
    FILE *fp;
    if(!(fp = fopen("junk.jnk","r")))
        error_exit(0,"Unable to open file");
}