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

void print_string(char const** a_pos, char end_character) {
    fputs("Prefix: '", stdout);
    for (; **a_pos != end_character; (*a_pos) += 1) {
        fputc(**a_pos, stdout);
    }
    fputc('\'', stdout);
    fputc('\n', stdout);
}

int main(int argc, char* argv[]) {
    char const* str = "Hello World";
    char const* pos = str;
    print_string(&pos, 'W');
    assert(*pos == 'W');
    print_string(&pos, '\0');
    return EXIT_SUCCESS;
}
/* vim: set tabstop=4 shiftwidth=4 fileencoding=utf-8 noexpandtab: */