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  1. February 5th, 2009, 10:17 AM #1
    Salvadoravi
    Salvadoravi is offline Member
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    [RESOLVED] why do I need exceptions specifications

    Hi all,

    Are there any benefits for using exceptions specifications ?
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  2. February 5th, 2009, 10:23 AM #2
    JohnW@Wessex's Avatar
    JohnW@Wessex
    JohnW@Wessex is offline Elite Member
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    Re: why do I need exceptions specifications

    Some words from Herb Sutter about it.

    http://www.gotw.ca/publications/mill22.htm

    • Moral #1: Never write an exception specification.
    • Moral #2: Except possibly an empty one, but if I were you I’d avoid even that.
    "It doesn't matter how beautiful your theory is, it doesn't matter how smart you are. If it doesn't agree with experiment, it's wrong."
    Richard P. Feynman
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  3. February 5th, 2009, 10:25 AM #3
    Russco
    Russco is offline Member +
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    Re: why do I need exceptions specifications

    None whatsoever, in fact quite the opposite.

    Violation of an exception specification causes std::terminate to be called which immediately calls std::abort exiting your program without any cleanup whatsoever, possibly leaving files for instance in a complete state of disrepair.

    You are probably best off forgetting they even exist.
    Get Microsoft Visual C++ Express here or CodeBlocks here.
    Get STLFilt here to radically improve error messages when using the STL.
    Get these two can't live without C++ libraries, BOOST here and Loki here.
    Check your code with the Comeau Compiler and FlexeLint for standards compliance and some subtle errors.
    Always use [code] code tags [/code] to make code legible and preserve indentation.
    Do not ask for help writing destructive software such as viruses, gamehacks, keyloggers and the suchlike.
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