continue statement

This is a discussion on continue statement within the C++ Programming forums, part of the General Programming Boards category; I have just come across the conitnue statement, I have never before seen it used at all. could someone please ...

  1. #1
    Funniest man in this seat minesweeper's Avatar
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    continue statement

    I have just come across the conitnue statement, I have never before seen it used at all. could someone please verify that my understanding of it is correct. Say we have this code:

    Code:
    for (//setup of for loop in here)
    {
    
    if (condition 1)
    {
    continue;
    }
    
    if (condition 2)
    {
    //perform some tasks
    }
    
    }
    Am I correct in thinking that if condition 1 is true, the second 'if' statement will never be performed?

    Also what would occur if the code was this?:

    Code:
    for (//setup of for loop in here)
    {
    
    if (condition 1)
    {
    //perform some tasks
    }
    
    if (condition 2)
    {
    continue;
    }
    
    }
    Thanks in advance for any help given.

  2. #2
    Confused Magos's Avatar
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    If you have a loop (for/while/do) and use continue, the rest of the code within the loop will be skipped and the loop restarts.
    So yes, you assumption is correct. What will happen in case 2 is the same as if you didn't place the continue there, since you have nothing after it (you can say that the compiler 'places a continue' at the end of every loop).

    This will increase X 1 step at a hand, but only print it when it reaches 10:
    Code:
    int X = 0;
    while(true)
    {
       X++;
    
       if(X < 10)
       {
          continue;
       }
    
       cout << X << endl;
       break;
    }
    Last edited by Magos; 12-07-2002 at 08:36 AM.
    MagosX.com

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  3. #3
    Funniest man in this seat minesweeper's Avatar
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    Thank you very much

  4. #4
    CS Author and Instructor
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    Talking

    Well you find the continue keyword in C, Java, and C# as well.
    Mr. C: Author and Instructor

  5. #5
    Just a Member ammar's Avatar
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    I think you've also seen the break statement, it exit the loop, or if it's used in a switch statement it will skip the other cases.

    Code:
    switch( x )
    case 1:
    //statements
    break;
    case 2:
    ....
    ....
    so if x == 1 then it won't check for x == 2.
    none...

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