#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <assert.h>

#define dbg_printf  printf
// Preprocessor will replace every  dbg_printf  with printf.


int main(int argc, char* argv[]) {
    for(int i = 0; i < 5; i++) {
        dbg_printf("// Value of i at top of for loop is %d.\n", i);
        // ⇒ printf("// Value of i at top of for loop is %d.\n", i);
    }
    return EXIT_SUCCESS;
}
/* vim: set tabstop=4 shiftwidth=4 fileencoding=utf-8 noexpandtab: */