Compiling problem

This is a discussion on Compiling problem within the C++ Programming forums, part of the General Programming Boards category; I'm having an error while compiling my C++ program: error: expected ')' before "void" Here is the code where the ...

  1. #1
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    Compiling problem

    I'm having an error while compiling my C++ program:
    error: expected ')' before "void"
    Here is the code where the error is happening:
    Code:
    int main ()
    {
        int pvr;
    
        if ( pvr void init_pvr() true);
        {
            return 0;
        }
        if ( pvr void init_pvr() false);
    }
    Help? Inserting ")" before "void" won't work.

  2. #2
    and the Hat of Guessing tabstop's Avatar
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    I guess the question is -- what do you think "pvr void init_pvr() true" is supposed to mean? I mean, this isn't postscript or some stack based language. If you want to pass pvr to the function init_pvr, you put it inside the parentheses. And you can't compare with true, since apparently the function is void, which means it doesn't return anything, let alone true or false.

  3. #3
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    Alright, I removed the "int pvr". Now I get PLUS 1 error:
    error: expected primary-experession before "void"

  4. #4
    and the Hat of Guessing tabstop's Avatar
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    I would hope so. You don't use void when you call functions either, just like you don't always talk about "int pvr" when you use the variable, etc.

  5. #5
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    Oh wait... I think I don't need this "if" stack anymore, because if PVR graphics chip isn't working the error message won't display! I'm so stupid.

  6. #6
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    Alright, I'm having issues in compiling, this time in a required area.
    I get the following errors:
    error: redefinition of 'struct maple_devinfo
    error: previous definition of 'struct maple_devinfo
    error: new declaration of 'void maple_init
    error: ambiguates old declaration 'int maple_init'

  7. #7
    C++まいる!Cをこわせ! Elysia's Avatar
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    1) You are trying to create 2 types of struct blueprints with the same name. Illegal.
    2) You are trying to overload functions only based on the return type. Illegal.
    Quote Originally Posted by Adak View Post
    io.h certainly IS included in some modern compilers. It is no longer part of the standard for C, but it is nevertheless, included in the very latest Pelles C versions.
    Quote Originally Posted by Salem View Post
    You mean it's included as a crutch to help ancient programmers limp along without them having to relearn too much.

    Outside of your DOS world, your header file is meaningless.

  8. #8
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    Quote Originally Posted by Elysia View Post
    1) You are trying to create 2 types of struct blueprints with the same name. Illegal.
    2) You are trying to overload functions only based on the return type. Illegal.
    So what should I do? :S

  9. #9
    C++まいる!Cをこわせ! Elysia's Avatar
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    Depends on what you are trying to do.
    As I said, you cannot have two structs that have the same name.
    And you cannot have 2 or more functions with the same name when they only differ with the return type. If they have different parameter lists, it's legal, but otherwise not.
    Quote Originally Posted by Adak View Post
    io.h certainly IS included in some modern compilers. It is no longer part of the standard for C, but it is nevertheless, included in the very latest Pelles C versions.
    Quote Originally Posted by Salem View Post
    You mean it's included as a crutch to help ancient programmers limp along without them having to relearn too much.

    Outside of your DOS world, your header file is meaningless.

  10. #10
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    Hmm. Is this for a PVR as in Imagination Technologies PVR?

    --
    Mats
    Compilers can produce warnings - make the compiler programmers happy: Use them!
    Please don't PM me for help - and no, I don't do help over instant messengers.

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