[C++] conjunction/disjunction/negation

개요

• conjunction
  • and 연산을 효과적으로 수행
• disjunction
  • or 연산을 효과적으로 수행
• negation
  • 부정 연산 수행

예제

• 코드

   #include <iostream>
      
   using namespace std;
      
   template <typename T, typename... Ts> void func(T, Ts...) {
   	if (conjunction<is_same<T, Ts>...>::value) {
   		cout << "conjunction" << endl;
   	}
      
   	if (disjunction<is_same<T, Ts>...>::value) {
   		cout << "disjunction" << endl;
   	}
   }
      
   int main() {
   	func(1, 2, 3);
      
   	cout << "------ 1" << endl;
      
   	func(1, "a");
      
   	cout << "------ 2" << endl;
      
   	func(1, 2, "a");
      
   	cout << "------ 3" << endl;
      
   	cout << negation<bool_constant<true>>::value << endl;
   	cout << negation<bool_constant<false>>::value << endl;
      
   	return 0;
   }
  

• 실행 결과

   conjunction
   disjunction
   ------ 1
   ------ 2
   disjunction
   ------ 3
   0
   1