cppdemo/decltype.cpp at main · bsclifton/cppdemo · GitHub

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#include <iostream>

#include <string>

#include <type_traits>

#include <vector>

struct Bubba {

int a;

};

struct Smith {

int b;

};

int decltype_main(int argc, wchar_t* argv[]) {

std::cout << std::endl << __FILE__ << std::endl;

int a = 22;

decltype(a) b = 44;

std::vector<decltype(a)> c(100, a);

std::cout << std::boolalpha << std::is_same<Bubba, Smith>::value << std::endl;

std::cout << std::boolalpha << std::is_same_v<long, int64_t> << std::endl;

std::cout << std::boolalpha << std::is_same_v<decltype(a), decltype(b)> << std::endl;

return 0;

}

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