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// is_trivially_copy_assignable example
#include <iostream>
#include <type_traits>
struct A { };
struct B : A {};
struct C { C& operator= (const A&){return *this;} };
int main() {
std::cout << std::boolalpha;
std::cout << "is_trivially_copy_assignable:" << std::endl;
std::cout << "int=short: " << std::is_trivially_copy_assignable<int,short>::value << std::endl;
std::cout << "A=A: " << std::is_trivially_copy_assignable<A,A>::value << std::endl;
std::cout << "A=B: " << std::is_trivially_copy_assignable<A,B>::value << std::endl;
std::cout << "B=A: " << std::is_trivially_copy_assignable<B,A>::value << std::endl;
std::cout << "C=A: " << std::is_trivially_copy_assignable<C,A>::value << std::endl;
return 0;
}
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