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C++ Equivalent to C# Dictionary

The nearly exact C++ equivalent to .NET's List collection is the std::unordered_map collection.

Original C#:

void Dictionaries()
    Dictionary<string, int> myDictionary = new Dictionary<string, int>();
    string s = "test";
    myDictionary.Add(s, 1);
    int i = myDictionary[s];
    i = myDictionary.Count;
    bool b = myDictionary.Count == 0;

Equivalent C++:

#include <string>
#include <unordered_map>

void Dictionaries()
    std::unordered_map<std::wstring, int> myDictionary;
    std::wstring s = L"test";
    myDictionary.emplace(s, 1);
    int i = myDictionary[s];
    i = myDictionary.size();
    bool b = myDictionary.empty();

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