c++ - std::vector pointer with data swap -

in section of code below, resultant memory structure after swap? there leak because have swapped memory addresses underneath? fine because did deep copy? if code stuck inside of class , swapping working buffer piece of dynamic memory?

#include <iostream> #include <vector>  int main() {     std::vector<std::string> * ptr_str_vec =         new std::vector<std::string>();     ptr_str_vec->push_back("hello");      std::vector<std::string> str_vec;     str_vec.push_back("world");      ptr_str_vec->swap(str_vec);      delete ptr_str_vec;     //what resulting structures?      return 0; } 

edit: posted faulty code. fixed errors.

when vector created, underlying continuous data block used vector default created heap. in case, since didn't supply allocator, default 1 used.

int main() {     std::vector<std::string> * ptr_str_vec =         new std::vector<std::string>(); // #^&! *ptr_str_vec allocated heap. vector's data block allocated heap.     ptr_str_vec->push_back("hello");    // #^&! "hello" copied onto heap block #1      std::vector<std::string> str_vec;   // #^&! str_vec allocated stack. vector's data block allocated heap.     str_vec.push_back("world");         // #^&! "world" copied onto heap block #2      ptr_str_vec->swap(str_vec);         // #^&! swap fast o(1), done swapping block #1 , #2's address. no data copy done during swap.      delete ptr_str_vec;                 // #^&! delete ptr_str_vec heap block #2.     //what resulting structures? /      return 0;                           // #^&! delete str_vec heap block #1 }