Question

How to get tuple size in C++

Answer 1

#include <iostream>
#include <tuple> 

int main()
{
    std::tuple <char, int, float, std::string> t; 
  
    t = std::make_tuple('z', 89, 3.14, "c++"); 
    
    std::cout << std::tuple_size<decltype(t)>::value;
}
  
  
  
/*
run:
  
4
  
*/

 

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