calling conventions

This is a discussion on calling conventions within the C Programming forums, part of the General Programming Boards category; Hello, I'm reading about C calling conventions. I found this explanation: "The pascal keyword is used in the prototype and ...

  1. #1
    Registered User Micko's Avatar
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    calling conventions

    Hello, I'm reading about C calling conventions.
    I found this explanation:
    "The pascal keyword is
    used in the prototype and definition of the function to tell the compiler to
    use this convention. In fact, MS Windows API C functions use the Pascal
    convention. Why? It is a little more efficient than the C convention."

    And this:

    "The difference in stdcall and cdecl is that stdcall requires the subroutine
    to remove the parameters from the stack (as the Pascal calling convention
    does). Thus, the stdcall convention can only be used with functions that
    take a fixed number of arguments (i.e. ones not like printf and scanf)."


    If someone can explain me what is difference between stdcall and pascal calling convection. In MSDN I found #define WINAPI __stdcall, so according to this API uses stdcall convention.
    I also found in MSD when learning win socket api this:
    "
    int PASCAL FAR bind ( SOCKET s, const struct sockaddr FAR * name, int namelen); "

    So it uses Pascal convention.

    Thanks very much for help!

  2. #2
    Compulsive Liar Robc's Avatar
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    >If someone can explain me what is difference between stdcall and pascal calling convection.
    IIRC, the two refer to the same calling convention. PASCAL is defined with stdcall.

  3. #3
    Registered User Micko's Avatar
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    You're rghit, I found what you said in windef.h.
    Thanks

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