STL size thread safe

This is a discussion on STL size thread safe within the C++ Programming forums, part of the General Programming Boards category; Is the STL vector method size() thread safe.. most sites say it is but while I was debugging my program ...

  1. #1
    Its not rocket science vasanth's Avatar
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    STL size thread safe

    Is the STL vector method size() thread safe.. most sites say it is but while I was debugging my program I found out that if more than one thread called this member a segmentation fault occured due to a static variable in the method...


    thanx in advance

  2. #2
    Confused Magos's Avatar
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    I'd very much doubt it is, why lose performance to make it thread safe when it's not needed in some (most?) cases.
    std::vector is a template, look at the implementation in the header file.
    MagosX.com

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    No. Simple wrap the call to the STL object using any solution for thread synchronization.

    Kuphryn

  4. #4
    Its not rocket science vasanth's Avatar
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    Quote Originally Posted by kuphryn
    No. Simple wrap the call to the STL object using any solution for thread synchronization.

    Kuphryn
    anyway planing to write my own simple vector class.... The problem with using locks is it will surely brind down my programs performance since it accesses the vector and its members atleast 10 to 20 times a seccond..

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    I recommend that you wrap the STL vector.

    Kuphryn

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