Copy One File into Another File

1#include <stdio.h>
2
3int main() {
4    FILE *source = fopen("source.txt", "r");
5    FILE *dest = fopen("copy.txt", "w");
6    char ch;
7    
8    if (source == NULL || dest == NULL) {
9        printf("Error opening files!\n");
10        return 1;
11    }
12    
13    // Copy character by character
14    while ((ch = fgetc(source)) != EOF) {
15        fputc(ch, dest);
16    }
17    
18    fclose(source);
19    fclose(dest);
20    
21    printf("File copied successfully!\n");
22    return 0;
23}