_beginthread & c run-time library

This is a discussion on _beginthread & c run-time library within the C++ Programming forums, part of the General Programming Boards category; on msdn,it is said that: A thread in an executable that is linked to the static C run-time library (CRT) ...

  1. #1
    Never Exist Hermitsky's Avatar
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    _beginthread & c run-time library

    on msdn,it is said that:
    A thread in an executable that is linked to the static C run-time library (CRT) should use _beginthread and _endthread for thread management rather than CreateThread and ExitThread.
    what is "C run-time library"? what is the difference between it and "c++ standard library"?


    ps:why i cannot use _beginthread on CBuilderX ?
    when compile, it said _beginthread was undefined.

    i need your help,thanks

    blow me ... ...

  2. #2
    It's full of stars adrianxw's Avatar
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    First, have you included process.h?

    I am aware that Borland used to call some of their "lower" routines differently then MS, beginthredex() from MS was called beginthreadNT() by Borland. Simplest solution is probably to open the process.h header and search for the routines.
    Wave upon wave of demented avengers march cheerfully out of obscurity unto the dream.

  3. #3
    Cat without Hat CornedBee's Avatar
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    what is "C run-time library"? what is the difference between it and "c++ standard library"?
    The C Run-Time library is defined by the C standard, the C++ Standard Library is defined by the C++ standard. The C++ standard also requires the C Run-Time library to be present.

    ps:why i cannot use _beginthread on CBuilderX ?
    Because _beginthread is a Microsoft-specific function and doesn't exist in Borland's compiler. Borland will have an equivalent function, and if not, you can use CreateThread directly.
    All the buzzt!
    CornedBee

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  4. #4
    Never Exist Hermitsky's Avatar
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    this is the error message i got:
    Error: Unresolved external '__beginthreadNT' referenced from C:\DOCUMENTS AND SETTINGS\OWNER\CBPROJECT\BOOKSMANAGEMENTSYSTEM\WIN DOWS\DEBUG_BUILD\BMSMAIN.OBJ
    i can find _beginthread(),_beginthreadex(),_beginthreadNT() in process.h
    but why i just cannot make it work?? i can't take it

    blow me ... ...

  5. #5
    Never Exist Hermitsky's Avatar
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    i got this on msdn:
    To use _beginthread or _beginthreadex, the application must link with one of the multithreaded C run-time libraries.
    will CBuilderX do it automatically ?
    or how can i link my program with one of the multithreaded C run-time libraries ?

    blow me ... ...

  6. #6
    It's full of stars adrianxw's Avatar
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    The error message you are seeing is a linker error not a compiler error. You are on the right track, you need to link with a multithreaded library. I know how to do that with Visual Studio, but I don't have Borland Builder any more.
    Wave upon wave of demented avengers march cheerfully out of obscurity unto the dream.

  7. #7
    Never Exist Hermitsky's Avatar
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    LOL~~ it works !
    i linked a library - "cw32mti.lib".

    Thank you ~~~~~~~~
    so happy~~~~~

    blow me ... ...

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