Question

I’m begginer in C++ using Xcode.
I get error using Xcode C++ when trying to use declared global variable.
Here is example code.

#include <iostream>
using namespace std;

int count ;

int main()
{
    count=1;     // reference to 'count' is ambiguous

    cout << count;  // reference to 'count' is ambiguous

    return 0;
}

Thank you.

Answer 1

There is an STL algorithm named std::count() and as there is a using namespace std; directive the compiler now has two available count symbols to choose from: remove the using namespace std; and use std::cout.

See Using std Namespace for further reading.