Question

How to check whether a vector is empty in C++ 17

Answer 1

#include <iostream>
#include <vector>
 
int main() 
{
    std::vector<int> v = { 5, 3, 1, 8, 2 };

    v.clear();
    if (std::empty(v))
        std::cout << "Empty\n";
}
 


 
/*
run:
 
Empty
 
*/

 

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