C++0x

cpp0x refers to the working name for C++11, which was previously known as C++0x before its final release. C++11 is a major revision of the C++ language standard, published in 2011, and brought several new features and improvements to the language.

Some of the notable features in C++11 include:

• Auto keyword for automatic type inference.

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  auto i = 42; // i is an int
  auto s = "hello"; // s is a const char*
  

• Range-based for loop for easier iteration over containers.

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  std::vector<int> vec = {1, 2, 3};
  for (int i : vec) {
      std::cout << i << '\n';
  }
  

• Lambda functions for creating anonymous functions.

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  auto add = [](int a, int b) { return a + b; };
  int result = add(3, 4); // result is 7
  

• nullptr for representing null pointer values, instead of using NULL.

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  int* p = nullptr;
  

• Rvalue references and move semantics to optimize the handling of temporary objects.

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  std::string str1 = "hello";
  std::string str2 = std::move(str1); // move the content of str1 to str2
  

• Variadic templates for creating templates that take a variable number of arguments.

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  template <typename... Args>
  void printArgs(Args... args) {
      // function body
  }
  

• Static assertions for compile-time assertions.

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  static_assert(sizeof(int) == 4, "This code requires int to be 4 bytes.");
  

• Thread support for multithreading programming.

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  #include <thread>
  
  void my_function() {
      // thread function body
  }
  
  int main() {
      std::thread t(my_function);
      t.join();
      return 0;
  }
  

These are just a few examples of the many new features introduced in C++11. For a comprehensive list, you can refer to the C++11 documentation.