silence warning when assigning pointers

This is a discussion on silence warning when assigning pointers within the C Programming forums, part of the General Programming Boards category; Although my code works, I'm getting a warning I don't know how to supress. I'm assigning a multi dimensional array ...

  1. #1
    Registered User eth0's Avatar
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    silence warning when assigning pointers

    Although my code works, I'm getting a warning I don't know how to supress.

    I'm assigning a multi dimensional array of type CHAR** to one of type LPCTSTR*

    I assumed this was ok as all pointers are 32bit in Windows.

    Here is the code causing me problems

    Code:
    BOOL Start(INT ArgCount, TCHAR **Args)
    {
        SC_HANDLE hSc;
        LPCTSTR ServiceName = *Args++;
        LPCTSTR *ServiceArgs = Args;  // error relates to this line
    
    ...
    warning: initialization from incompatible pointer type
    How do I correct this?

    Thanks.
    Open source isn't a matter of life or death......
    .......its much more important than that!!


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  2. #2
    ATH0 quzah's Avatar
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    Quote Originally Posted by eth0
    How do I correct this?
    Use a compatible pointer type.


    Quzah.
    Hope is the first step on the road to disappointment.

  3. #3
    Registered User eth0's Avatar
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    I can't, it needs to be converted somewhere along the line.


    The TCHAR traces back to a return from one function, and it needs to be used in another as LPCTSTR.

    This must be a failry common occurance.
    Open source isn't a matter of life or death......
    .......its much more important than that!!


    SuSE Linux - GCC 3.4.2
    XP Pro - Visual Studio 2005 TS, MinGW 3.4.2

  4. #4
    Gawking at stupidity
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    This must be a failry common occurance.
    Only in Windows where Microsoft bastardizes everything including C.

    Anyway, have you tried typecasting?
    Code:
    LPCTSTR *ServiceArgs = (LPCTSTR *)Args;
    That should supress the error without making the whole situation any more "correct".
    If you understand what you're doing, you're not learning anything.

  5. #5
    Registered User eth0's Avatar
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    Quote Originally Posted by itsme86
    Anyway, have you tried typecasting?
    Code:
    LPCTSTR *ServiceArgs = (LPCTSTR *)Args;
    Doh, I was casting with
    Code:
    LPCTSTR *ServiceArgs = (LPCTSTR)Args;
    forgetting it was a MD pointer.

    Stupid mistake.

    Thanks.
    Open source isn't a matter of life or death......
    .......its much more important than that!!


    SuSE Linux - GCC 3.4.2
    XP Pro - Visual Studio 2005 TS, MinGW 3.4.2

  6. #6
    Gawking at stupidity
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    That's really bad when you're using that hungarian notation thing which was invented to avoid such blunders
    If you understand what you're doing, you're not learning anything.

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