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POHow to handle all errors, including internal C library errors, uniformly
 

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  1. POHow to handle all errors, including internal C library errors, uniformly
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    <p>I wanted to handle all internal errors gracefully, without program termination.</p> <p>As discussed <a href="http://msdn.microsoft.com/en-us/library/ms680634(VS.85).aspx" rel="nofollow noreferrer">here</a>, using <strong>_set_se_translator</strong> catches divide-by-zero errors. </p> <p>But it does not catch, for example, C runtime library error <em>-1073740777 (0xc0000417)</em>, which can be caused by format strings for <strong>printf</strong> which have the percent sign where they shouldn't. (That is just an example; of course we should check for such strings). To handle these, <strong>_set_invalid_parameter_handler</strong> is needed. </p> <p>There are about ten other such handlers listed <a href="https://stackoverflow.com/questions/82483/how-to-catch-all-exceptions-crashes-in-a-net-app">here</a>.</p> <p>In addition, this one will catch uncaught C++ exceptions: <a href="http://msdn.microsoft.com/en-us/library/ms680634(VS.85).aspx" rel="nofollow noreferrer"><strong>SetUnhandledExceptionFilter</strong></a>. Thus, it can be used together with the <strong>__set__ ...</strong> functions. (An article about <a href="http://blog.kalmbachnet.de/?postid=75" rel="nofollow noreferrer">using it</a> in MSVC 2008.)</p> <p>I want to catch any and all errors so I can handle them (by logging, throwing a modern C++ standard exception and returning an application-specific error code). Is there a single handler that catches everything? </p> <p>See also this on <a href="https://stackoverflow.com/questions/82483/how-to-catch-all-exceptions-crashes-in-a-net-app">StackOverflow</a>.</p> <p>I am using Visual Studio 2008.</p>
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    1. COTell me where exactly in the C standard it mentions 0xc0000417, and how to catch and recover from divide by zero. </snark> Your question seems both too broad and too narrow at the same time. Too broad, as in, "handling all internal errors gracefully" is extremely subjective, and in the case of code you didn't write not really your business. Too narrow in that you're confusing the C and C++ languages with a bunch of Microsoft specific stuff.
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    2. COYes, I know that some of the (inadequate) solutions I mentioned are MS specific or involve C++ rather than C. In fact, my question is exactly on how to catch all these errors entirely in standard C.
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