C++

Hello /prog/.

I know very little about C++. and my only other experience with programming is a calculator in freeBasic.

I studied how to programm a guessing game from the internets but my 4.9.9.2 Dev C++ fail to compile it.

this is what i wrote:

#include <iostream>
#include <ctime>
#include <conio.h>
using namespace std;

int main(void){
   
    int UPPER_LIMIT;
    int random;
    int userguess;
    char playAgain;
    srand(static_cast<unsigned int>(time(0)));
    random = rand()%20+1;
   
    do{
                           
    while(userguess !== random){
   
    cout << "Please enter a number between 1 - 20: ";
    cin >> userguess
   
    if(userguess == random){
                 cout << "wow good job you guessed right." <<endl;
                 }
                
    else if(userguess > random){
    cout << "that number is too low" <<endl;
    system("CLS");
}
        
    else if(userguess < random){
         cout << "that number is too high" <<endl;
    system("CLS");
   
    }
}

cout << "Do you wish to play again? y//n: ";
cin >> playAgain;


} while(tolower(playAgain == 'y');


getch();
return 0;
}

PLEEAASE HAAALP /PROG/.
Thanks in advance.

Is bitwise negation a task you do often enough, that you think it deserves an operator?
No. It is not a questions of whether it is done often enough. There are hosts of operators standard in C/C++ that don't get used often. It is a question of a consistent interpretation of symbols, rather than an ad hoc implementation.

The reason we use !== instead of != is the same reason we use cd/rm/cp instead of changedir/remove/copy, it saves some marginal amount of typing and screen space back when it was more of an issue.

Code is read more than it is written. This excuse has never made sense.