#include <stdio.h>
#include <string.h>

#define LENGTH 4

//returns 1 if the code was read okay 0 if the file was bad
int get_code(char code[]);

int main (void) {
	char code[LENGTH];
	int i;
	int code_ok;

	code_ok = get_code(code);
	
	if(code_ok) {
		for(i = 0; i < LENGTH; i++) {
			printf("code at position %d: %c\n", i, code[i]);
		}
		printf("\n\n");
	} else {
		printf("PROGRAM CANNOT COMPLETE\n\n");
	}
}

//returns 1 if the code was read okay 0 if the file was bad
int get_code(char code[]) {
	FILE *infile;
	int i;

	infile = fopen("code.txt", "r");
	if(infile != NULL) {
		for(i = 0; i < LENGTH; i++) {
			fscanf(infile, "%c ", &code[i]);
			//YOUR ERROR CHECKING CODE GOES HERE!!!
			//WHAT IF fscanf RETURNED A BAD VALUE?
			//WHAT IF THE CHAR WAS ILLEGAL?
		}
		fclose(infile);
		return 1;
	} else {
		printf("BAD INPUT FILE\n\n");
		return 0;
	}

}