" Missing ';' before 'type' " ?

This is a discussion on " Missing ';' before 'type' " ? within the C Programming forums, part of the General Programming Boards category; Code: switch(LOWORD(wParam)) { case ID_FILE_EXIT: PostMessage(mainww, WM_CLOSE, 0, 0); break; case ID_HELP_ABOUT : /*error here */ int ret = DialogBox(GetModuleHandle(NULL), ...

  1. #1
    Registered User kinghajj's Avatar
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    " Missing ';' before 'type' " ?

    Code:
                    switch(LOWORD(wParam))
    		{
    			case ID_FILE_EXIT:
    				PostMessage(mainww, WM_CLOSE, 0, 0);
    			break;
    			
    			case ID_HELP_ABOUT:
    /*error here */			int ret = DialogBox(GetModuleHandle(NULL), MAKEINTRESOURCE(ID_ABOUT), mainww, AboutDlgProc);
    			break;
    		}
    what's wrong? I have all my semicolons!

  2. #2
    & the hat of GPL slaying Thantos's Avatar
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    change
    Code:
    int ret =
    to
    Code:
    ret =

  3. #3
    C++ Developer XSquared's Avatar
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    Is that the only error that you're getting?
    Naturally I didn't feel inspired enough to read all the links for you, since I already slaved away for long hours under a blistering sun pressing the search button after typing four whole words! - Quzah

    You. Fetch me my copy of the Wall Street Journal. You two, fight to the death - Stewie

  4. #4
    Has a Masters in B.S.
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    you cannot declare variables in a switch!

    to get around this limitation you can use blocking,

    Code:
    case ID_HELP_about :
    {
        int ret = DialogBox(GetModuleHandle(NULL), MAKEINTRESOURCE(ID_ABOUT), mainww, AboutDlgProc);
    }
    break;
    Last edited by no-one; 10-01-2003 at 05:25 PM.
    ADVISORY: This users posts are rated CP-MA, for Mature Audiences only.

  5. #5
    & the hat of GPL slaying Thantos's Avatar
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    That code stills has you declaring a variable inside the switch no-one

  6. #6
    Just Lurking Dave_Sinkula's Avatar
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    I'm getting off the original question here a little, but...

    >you cannot declare variables in a switch!

    Yes you can. But the usefulness may be questionable. Here is a hideous example (for entertainment mostly).
    Code:
    #include <stdio.h>
    
    int main(void)
    {
       int i;
       for ( i = 0; i < 5; ++i )
       {
          switch ( i )
          {
             int i = 42; /* 'i' is declared, but not initialized,
                            it also hides the outer 'i' */
          case 0: i = printf("Hello\n"); goto hell;
          case 1: i = printf("everybody!\n"); goto hell;
          default: hell: printf("i = %d\n", i++);
          }
       }
       return 0;
    }
    
    /* my output
    Hello
    i = 6
    everybody!
    i = 11
    i = 12
    i = 13
    i = 14
    */
    7. It is easier to write an incorrect program than understand a correct one.
    40. There are two ways to write error-free programs; only the third one works.*

  7. #7
    Has a Masters in B.S.
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    >That code stills has you declaring a variable inside the switch no-one

    note: that what i said was a method of "By-passing" this, by using the blocking functionality.

    >Yes you can. But the usefulness may be questionable. Here is a hideous example (for entertainment mostly).

    Well, to be honest i've actual never seen that one... and i'm not sure as to how legal that is... anyway both ways are technically loop-holes, ie abuses of the blocking operators, and both should be avoided, where possible.
    ADVISORY: This users posts are rated CP-MA, for Mature Audiences only.

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