Problem with do while loop

This is a discussion on Problem with do while loop within the C Programming forums, part of the General Programming Boards category; I am pretty sure my code is right i copied it right out of the book. But for some reason ...

  1. #1
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    Problem with do while loop

    I am pretty sure my code is right i copied it right out of the book. But for some reason I get this error message

    First-chance exception at 0x667f6af2 (msvcr90d.dll) in doingWallE.exe: 0xC0000005: Access violation writing location 0x00000000.
    Unhandled exception at 0x667f6af2 (msvcr90d.dll) in doingWallE.exe: 0xC0000005: Access violation writing location 0x00000000.

    Code:
    #include "stdafx.h"
    #include "stdio.h"
    
    int main()
    {
    int value;
    	do
    	{
    	printf("\n\nenter a number: ");
    	scanf(" %d, &value");
    	}
    	while(value<=20);
    	return (0);
    }
    I know how while loops work, but I went back to my book to make sure I was doing it right because my project would give me the same error message. Then I copied this test code right at the book and all of the sudden I am getting the same error message. This happens only when I use do while loops. Can anyone tell me why is this happening?

    Also the program runs but it crashes as soon as I enter any input (a number below or above 20)
    Last edited by tru.cutru; 06-29-2008 at 10:03 PM.

  2. #2
    Registered User C_ntua's Avatar
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    It is
    Code:
    scanf("%d", &value);
    You have the " wrong.

  3. #3
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    Jun 2008
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    OH JESUS. I probably had that wrong on my other code too. Thanks

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