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

void main(int argc, char ** argv){
	printf("argc = %d\n", argc);
	for(int i = 0; i < argc; i++){
		printf("argv[%d] = %s\n", i, argv[i]);
	}

	printf("Here is where things are located in argv:\n");
	for(int i = 0; i < argc; i++){
		printf("argv[%d] is at location 0x%lx\n", i, argv[i]);
	}

	printf("Beginning print without respecting null terminators\n");
	for(int i = 0; i < 100; i++){
		char next = argv[0][i];
		if(!next)
			next = '_';
		printf("%c", next);
	}
	printf("\n");

	// This is a shallow copy
	char* firstword = argv[1];
	printf("firstword = %s\n", firstword);
	argv[1][1] = 0;
	printf("firstword = %s\n", firstword);

	// This will be a deep copy
	char* secondword = malloc(strlen(argv[2]));
	strcpy(secondword, argv[2]);
	printf("secondword = %s\n", secondword);
	argv[2][1] = 0;
	printf("secondword = %s\n", secondword);
	free(secondword); // It would have been freed at the end of main anyway
}