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  1.     #include <iostream>
  2.     using namespace std;
  3.     template <typename T>
  4.     class Interleave {
  5.     	T a, b;
  6.     	bool check = false;
  7.     	public:
  8.     		Interleave(T a, T b) {
  9.     			this->a = a;
  10.     			this->b = b;
  11.     		}
  12.  
  13. 	        T getValue() {
  14.     	        check = !check;
  15.         	    return check ? a : b;
  16.         	}
  17.     };
  18.  
  19.     int getNumber() {
  20.     	static Interleave<int> numero(10, 20);
  21.         return numero.getValue();
  22.     }
  23.  
  24.     int main() {
  25.         Interleave<int> numero(10, 20);
  26.         cout << numero.getValue() << endl;
  27.         cout << numero.getValue() << endl;
  28.         cout << numero.getValue() << endl;
  29.  
  30.         Interleave<string> texto("aaa", "bbb");
  31.         cout << texto.getValue() << endl;
  32.         cout << texto.getValue() << endl;
  33.         cout << texto.getValue() << endl;
  34.  
  35.         cout << getNumber() << endl;
  36.         cout << getNumber() << endl;
  37.         cout << getNumber() << endl;
  38.     }
Success #stdin #stdout 0s 3476KB
comments (?)
stdin
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Standard input is empty
stdout
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10
20
10
aaa
bbb
aaa
10
20
10
https://ideone.com/8IqwQd
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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