#include "chapter12.hpp"
#include <string.h>
#include <stdlib.h>

/*
  Reverse String: Implement a function void reverse( char* str) in C or C++ which reverses
  a null-terminated string.
*/

void reverse_str(char *str){
  size_t len = strlen(str);
  char *tmp = reinterpret_cast<char*>(malloc(len));
  strcpy(tmp, str);
  for(unsigned int offset = 0; offset < len; ++offset){
    str[offset] = tmp[len-offset-1];
  }
  str[len] = '\0';

  free(tmp);
}