c++11&14-STL要点汇总

#include <array>
#include <iostream>
int main()
{
  std::array<int, 4> arrayDemo = { 1,2,3,4 };
  std::cout << "arrayDemo:" << std::endl;
  for (auto itor : arrayDemo)
  {
    std::cout << itor << std::endl;
  }
  int arrayDemoSize = sizeof(arrayDemo);
  std::cout << "arrayDemo size:" << arrayDemoSize << std::endl;
  return 0;
}

#include <forward_list>
#include <iostream>
int main()
{
  std::forward_list<int> numbers = {1,2,3,4,5,4,4};
  std::cout << "numbers:" << std::endl;
  for (auto number : numbers)
  {
    std::cout << number << std::endl;
  }
  numbers.remove(4);
  std::cout << "numbers after remove:" << std::endl;
  for (auto number : numbers)
  {
    std::cout << number << std::endl;
  }
  return 0;
}

#include <iostream>
#include <string>
#include <unordered_map>
int main()
{
  std::unordered_map<std::string, std::string> mymap =
  {
    { "house","maison" },
    { "apple","pomme" },
    { "tree","arbre" },
    { "book","livre" },
    { "door","porte" },
    { "grapefruit","pamplemousse" }
  };
  unsigned n = mymap.bucket_count();
  std::cout << "mymap has " << n << " buckets.\n";
  for (unsigned i = 0; i<n; ++i) 
  {
    std::cout << "bucket #" << i << " contains: ";
    for (auto it = mymap.begin(i); it != mymap.end(i); ++it)
      std::cout << "[" << it->first << ":" << it->second << "] ";
    std::cout << "\n";
  }
  return 0;
}

#include <iostream>
#include <string>
#include <unordered_set>
#include <set>
int main()
{
  std::unordered_set<int> unorder_set;
  unorder_set.insert(7);
  unorder_set.insert(5);
  unorder_set.insert(3);
  unorder_set.insert(4);
  unorder_set.insert(6);
  std::cout << "unorder_set:" << std::endl;
  for (auto itor : unorder_set)
  {
    std::cout << itor << std::endl;
  }
​
  std::set<int> set;
  set.insert(7);
  set.insert(5);
  set.insert(3);
  set.insert(4);
  set.insert(6);
  std::cout << "set:" << std::endl;
  for (auto itor : set)
  {
    std::cout << itor << std::endl;
  }
}