string not recognized as declaration

[COM314]

It almost seems to be being recognized as a char.

#include <iostream>
#include <string>
#include <sstream>
#include <conio.h>
#include <windows.h>

using namespace std;

int main()
{
    int a, c, e, f, h;
    string d = "y";
    char b, g;
    
    c = 0;
    h = 0;
    while(c < 1000)
    {
            while(d = "y")
            {
                    while(h < 50)
                    {
                            cout << endl;
                            h++;
                    };
            a = rand() % 26;
            e = (rand() %10000) + 1;
            f = (rand() %500) + 1;
            b = a + 49;
            Sleep(e);
            cout << b;
            Sleep(f);
            cout << "What letter was that? ";
            cin >> g;
                   while(h < 50)
                   {
                           cout << endl;
                           h++;
                   };
            h = 0;
            if(g == a + 49)
            cout << "CORRECT!!!";
            else
            cout << "WRONG!!!";
            cout << endl;
            while(h < 50)
                    {
                         cout << endl;
                         h++;
                    };
            h = 0;
            cout << "Play again? (y/n) ";
            cin >> d;
            };
    };
}

[Peter87]

You used = instead of ==.

[vlad from moscow]

I hope you know that this

while(d = "y")

is an assignment not a comparision.