// cp <file1> <file2>
// implemented with fgetc
// ./cp_fgetc data.txt data2.txt
// diff data.txt data2.txt
// ./cp_fgetc f f2
// diff f f2

// diff if our imp is broken.

#include <stdio.h>


int main(int argc, char *argv[]) {
    if (argc != 3) {
        fprintf(stderr, "Usage: %s <source file> <destination file>\n", argv[0]);
        return 1;
    }
    
    //add code
    FILE *f1 = fopen(argv[1],"r");
    FILE *f2 = fopen(argv[2],"w");

    if (f1 == NULL) {
        perror(argv[1]);
        return 1;
    }

    //add code

    if (f2 == NULL) {
        perror(argv[1]);
        return 1;
    }

    //add code
    int byte;
    while ((byte=fgetc(f1))!=EOF){
        fputc(byte,f2);
    }

    fclose(f1);
    fclose(f2);
    
    return 0;
}