C++ Exceptions

This is a discussion on C++ Exceptions within the C++ Programming forums, part of the General Programming Boards category; I had a problem with my new used PC. It gave me a Windows exception: In page error. Before that ...

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    System Novice siavoshkc's Avatar
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    C++ Exceptions

    I had a problem with my new used PC. It gave me a Windows exception: In page error. Before that I didn't know about Windows Exceptions. But I studied it and read about structured exception handling. A Windows program throws an exception using API call RaiseException(). The code embraced in a _try block in MSVC then catches the error. Microsoft has added this functionality to its compiler for Windows exceptions. I don't know about other compilers (Borland, etc). How they handle Win Exceptions?

    I also want to know if C++ exceptions use some OS fascility or not, compiler handles exception mechanism code by itself.
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    Could you give us the exact error code. "In page error" is not a regular error message. It may have got lost in translation somehow.

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    Quote Originally Posted by siavoshkc View Post
    I had a problem with my new used PC. It gave me a Windows exception: In page error.
    Like matsp, I have no idea what an "In page error" means. Clarification needed.
    Quote Originally Posted by siavoshkc View Post
    Before that I didn't know about Windows Exceptions. But I studied it and read about structured exception handling. A Windows program throws an exception using API call RaiseException(). The code embraced in a _try block in MSVC then catches the error. Microsoft has added this functionality to its compiler for Windows exceptions. I don't know about other compilers (Borland, etc). How they handle Win Exceptions?
    You'll have to read the documentation for particular compilers. The way that different compilers have handled "Win Exceptions" (more properly known as "Structured Exceptions" under windows) varies with both compilers and compiler versions.
    Quote Originally Posted by siavoshkc View Post
    I also want to know if C++ exceptions use some OS fascility or not, compiler handles exception mechanism code by itself.
    That's actually a bit of a non-question.

    Most (I won't say "all", as I'm not sure about older versions) versions of Microsoft compilers implement C++ error handling using windows Structured Exception Handling (SEH) techniques. However, that works by the compiler translating try/catch blocks into API calls related to SEH that are interspersed at relevant points in code. Either way, the compiler still has to generate code to raise an exceptions and other code to catch/handle them.

    There is no requirement that compilers use SEH to implement C++ exception handling, or even that they give compatibility (as far as the programmer is concerned) between SEH and C++ exception handling. In practice, however, compilers targeting windows applications will probably do something with SEH.
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    System Novice siavoshkc's Avatar
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    "In page error (c0000006)" is one of Win32 exceptions. Just like Access violation (c000005). You can see it in MSVC++ 2008 >> Debug >> Exceptions >> (in tree view) Win32 Exceptions

    I forgot to say that the cause of problem was bad IDE cable. I had to put the dump file in my other PC with MSVC installed to find the exact error code. It was strange that it worked fine in Windows safe mode. I really had a hard time to diagnose it. I diagnose many PCs. But most strange problems always happen on my own PC.

    Thank you grumpy for info.
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    Quote Originally Posted by siavoshkc View Post
    I also want to know if C++ exceptions use some OS fascility or not, compiler handles exception mechanism code by itself.
    As you're using VS, here's how it manages exceptions of both kinds.

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