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Problem with the system("CLS") command.

Dec 25, 2012 at 5:04am
plusone (20)
So I put the system("CLS"); command at line 39 to clear the screen before it printed out a new menu in my program. Its saying that 'system' was not declared in this scope. Thanks for any help in advance.

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#include <iostream>
#include <string>


using namespace std;
//------------------------------------------------------------------------------------------------------------Fucntion Prototypes
void testMainMenu();
void testEasy();
void testNormal();
void testMedium();
void testHard();
//------------------------------------------------------------------------------------------------------------ Main function and beginning screen
int main()
{
    string bMenuChoice;

    cout << "Dumb Test 6.9" << endl;
    cout << "-------------" << endl;
    cout << endl;
    cout << "Start" << endl;
    cout << "Exit" << endl;
    cout << endl;
    cin >> bMenuChoice;

    if(bMenuChoice == "Start")
    {
        testMainMenu();
    }
    else
    {
        cout << "Thanks for playing!" << endl;
    }
}
//------------------------------------------------------------------------------------------------------------Main Menu
void testMainMenu()
{
    string difficulty;

    system("CLS");

    cout << "Dumb Test 6.9 Main Menu" << endl;
    cout << "-----------------------" << endl;
    cout << endl;
    cout << "Select difficulty: " << endl;
    cout << endl;
    cout << "Easy" << endl;
    cout << "Normal" << endl;
    cout << "Medium" << endl;
    cout << "Hard" << endl;
    cout << endl;
    cout << "Difficulty = ";
    cin >> difficulty;

    if (difficulty == "Easy")
    {
       testEasy();
    }
    else if (difficulty == "Normal")
    {
        testNormal();
    }
    else if (difficulty == "Medium")
    {
        testMedium();
    }
    else
    {
        testHard();
    }

}
//------------------------------------------------------------------------------------------------------------Easy
void testEasy()
{
    cout << "Welcome to the Easy difficulty portion of the test. Good Luck" << endl;

}
//------------------------------------------------------------------------------------------------------------Normal
void testNormal()
{
    cout << "Welcome to the Normal difficulty portion of the test. Good Luck" << endl;
}
//------------------------------------------------------------------------------------------------------------Medium
void testMedium()
{
    cout << "Welcome to the Medium difficulty portion of the test. Good Luck" << endl;
}
//------------------------------------------------------------------------------------------------------------Hard
void testHard()
{
    cout << "Welcome to the Hard difficulty portion of the test. Good Luck" << endl;
}
//------------------------------------------------------------------------------------------------------------End of Hard
Edit & run on cpp.sh
Dec 25, 2012 at 7:27am
Hippogriff (727)
You will need to add #include <cstdlib> to use system commands on certain programs.
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