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

int main(int argc, char* argv[]) {
    char s_on_stack[] = "abc";
    s_on_stack[2] = 'd';    
    printf("%s\n", s_on_stack);

    // invalid initializer
    // char s_on_stack2[] = s_on_stack; <-- compile error

    char* s_on_data = "abc";
    // cannot modify strings stored in data segment
    //s_on_data[2] = 'd';               <-- seg fault at runtime
    printf("%s\n", s_on_data);

    char* s_on_data2 = s_on_data;
    printf("%s\n", s_on_data2);
    printf("s_on_data = %p\ns_on_data_2 = %p\n", s_on_data, s_on_data2);

    // can store address of an array
    char* s_on_stack_addr = s_on_stack;
    printf("%s\n", s_on_stack_addr);
    printf("s_on_stack = %p\ns_on_stack_addr = %p\n", s_on_stack, s_on_stack_addr);
    
    // does not work to use array initializer for char*
    //char* s = { 'A', 'B', 'C', '\0'};
    // can use array initializer for array of char*
    char* s[] = {"hello", "world"};
    return EXIT_SUCCESS;

    return EXIT_SUCCESS;
}
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