/*
 * Simple example of working with strings, using both array and pointer
 * notation.
 */
#include <stdio.h>

/* print string with spaces between characters, array version */
void print_string_a(char s[]) {
    printf("printing '%s' using array\n", s);
	printf("parameter size %lu, value %p\n", sizeof s, (void *) s);

	int idx = 0;
	while (s[idx] != '\0') {
		printf("%c ", s[idx++]);
	}
	puts("");
}
/* print string with spaces between characters, pointer version */
void print_string_p(char *s) {
    printf("printing '%s' using pointer\n", s);
	printf("parameter size %lu, value %p\n", sizeof s, (void *) s);

	char * p = s;
	while (*p != '\0') {
		printf("%c ", *(p++));
	}
	puts("");
}

int main(void) {
	char * s1 = "hello world";
	char s2[] = "goodbye cruel world";
    printf("string '%s' declared using pointer syntax, size is %lu\n",
            s1, sizeof s1);
	print_string_a(s1);
	print_string_p(s1);
    printf("string '%s' declared using array syntax, size is %lu\n",
            s2, sizeof s2);
	print_string_a(s2);
	print_string_p(s2);
	return 0;
}