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  1. #1
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    Pausing a C++ Program


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    Greetings everyone!

    I'm currently trying to grasp the basics of C++. I've been using 'system("PAUSE")' to pause a program but according to a number of programmers, this is a rather bad habit. Is there a better, more efficient way to pause a program please? I'm currently using Visual Studio 2008.

    Help is always much appreciated.


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  2. #2
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    Why would you need to pause a program?

  3. #3
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    Let's take this program as an example:

    Code:
    // This programs converts feet to metres or vice versa
    
    #include <iostream>
    using namespace std;
    
    int main ()
    {
        short userchoice;
        double metres;
        double feet;
    
        cout << "To convert feet to metres, please press 1\n";
        cout << "To convert metres to feet, please press 2\n";
        cin >> userchoice;
        cout << "\n";
    
        if (userchoice == 1)
        {
            cout << "Please enter the number of feet: ";
            cin >> feet;
            metres = feet/3.28;
            cout << feet << " feet = " << metres << " metres\n";
        }
    
        if (userchoice == 2)
        {
            cout << "Please enter the number of metres: ";
            cin >> metres;
            feet = metres*3.28;
            cout << metres << " metres = " << feet << " feet\n";
        }
    
        cout << "\n";
        system("PAUSE");
        return 0;
    }
    In this case, a pause is needed after displaying the result or else the program would instantly close without allowing the user to see it. Should I stick to 'system("PAUSE")' for simple programs?

  4. #4
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    Quote Originally Posted by Synapse View Post
    Let's take this program as an example:

    Code:
    // This programs converts feet to metres or vice versa
    
    #include <iostream>
    using namespace std;
    
    int main ()
    {
        short userchoice;
        double metres;
        double feet;
    
        cout << "To convert feet to metres, please press 1\n";
        cout << "To convert metres to feet, please press 2\n";
        cin >> userchoice;
        cout << "\n";
    
        if (userchoice == 1)
        {
            cout << "Please enter the number of feet: ";
            cin >> feet;
            metres = feet/3.28;
            cout << feet << " feet = " << metres << " metres\n";
        }
    
        if (userchoice == 2)
        {
            cout << "Please enter the number of metres: ";
            cin >> metres;
            feet = metres*3.28;
            cout << metres << " metres = " << feet << " feet\n";
        }
    
        cout << "\n";
        system("PAUSE");
        return 0;
    }
    In this case, a pause is needed after displaying the result or else the program would instantly close without allowing the user to see it. Should I stick to 'system("PAUSE")' for simple programs?
    I suggest that you download Visual Studio, since you don't need to pause the program if you use it.
    To run the program simply press ctrl + F5

  5. #5
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    Thanks for the tip mate!

  6. #6
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    you could create a loop that after the program is run, it asks if the user wants to run the program again. If so loop to the beginning, if not the program exits.




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