text: 
  // Copyright (C) 2008-2018 Lorenzo Caminiti
  // Distributed under the Boost Software License, Version 1.0 (see accompanying
  // file LICENSE_1_0.txt or a copy at http://www.boost.org/LICENSE_1_0.txt).
  // See: http://www.boost.org/doc/libs/release/libs/contract/doc/html/index.html
  
  //[cline90_vector_main
  #include "vector.hpp"
  #include <cassert>
  
  int main() {
      vector<int> v (3);
      assert(v.size() == 3);
      
      v[0] = 123;
      v.resize(2);
      assert(v[0] == 123);
      assert(v.size() == 2);
      
      return 0;
  }
  //]
  
  