本文主要是介绍VC++ 各种未处理异常的处理，并输出DUMP崩溃转储调试文件，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
本文包含：
信号处理器、STL标准库异常处理、STL未处理器异常处理、SEH结构化未处理异常处理、C++ 未定义虚函数异常处理、C/C++ 内存分配异常处理等。
设置异常处理器：
// Windows platforms need to mount unhandled exception handlers so that they can print dump debug files for app crashes.
#if defined(_DEBUG)::_CrtSetDbgFlag(_CRTDBG_LEAK_CHECK_DF | _CRTDBG_ALLOC_MEM_DF);
#endif::_set_abort_behavior(_CALL_REPORTFAULT, _CALL_REPORTFAULT);::_set_purecall_handler(Crt_HandlePureVirtualCall);::_set_new_handler(Crt_NewHandler); /* std::set_new_handler(...) */#if _MSC_VER >= 1400 ::_set_invalid_parameter_handler(Crt_InvalidParameterHandler);
#endif::signal(SIGABRT, Crt_SigabrtHandler);::signal(SIGINT, Crt_SigabrtHandler);::signal(SIGTERM, Crt_SigabrtHandler);::signal(SIGILL, Crt_SigabrtHandler);::set_terminate(Crt_TerminateHandler);::set_unexpected(Crt_UnexpectedHandler);::SetUnhandledExceptionFilter(Seh_UnhandledExceptionFilter);异常处理器实现：
static ppp::string Seh_NewDumpFileName() noexcept{ppp::string path = ppp::GetExecutionFileName();std::size_t index = path.rfind(".");if (index != ppp::string::npos){path = path.substr(0, index);}struct tm tm_;time_t datetime = time(NULL);localtime_s(&tm_, &datetime);char sz[1000];sprintf_s(sz, sizeof(sz), "%04d%02d%02d-%02d%02d%02d", 1900 + tm_.tm_year, 1 + tm_.tm_mon, tm_.tm_mday, tm_.tm_hour, tm_.tm_min, tm_.tm_sec);path = path + "-" + sz + ".dmp";path = "./" + path;path = ppp::io::File::RewritePath(path.data());path = ppp::io::File::GetFullPath(path.data());return path;}static LONG WINAPI Seh_UnhandledExceptionFilter(EXCEPTION_POINTERS* exceptionInfo) noexcept{// Give user code a chance to approve or prevent writing a minidump. If the// filter returns false, don't handle the exception at all. If this method// was called as a result of an exception, returning false will cause// HandleException to call any previous handler or return// EXCEPTION_CONTINUE_SEARCH on the exception thread, allowing it to appear// as though this handler were not present at all.HANDLE hFile = CreateFileA(Seh_NewDumpFileName().data(), GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);if (hFile != INVALID_HANDLE_VALUE){MINIDUMP_EXCEPTION_INFORMATION exceptionParam;exceptionParam.ThreadId = GetCurrentThreadId();exceptionParam.ExceptionPointers = exceptionInfo;exceptionParam.ClientPointers = TRUE;MiniDumpWriteDump(GetCurrentProcess(), GetCurrentProcessId(), hFile, MiniDumpWithFullMemory, &exceptionParam, NULL, NULL);CloseHandle(hFile);}// The handler either took care of the invalid parameter problem itself,// or passed it on to another handler. "Swallow" it by exiting, paralleling// the behavior of "swallowing" exceptions.exit(-1); /* abort(); */return EXCEPTION_EXECUTE_HANDLER;}#if _MSC_VER >= 1400 // https://chromium.googlesource.com/breakpad/breakpad/src/+/master/client/windows/handler/exception_handler.ccstatic void __CRTDECL Crt_InvalidParameterHandler(const wchar_t* expression, const wchar_t* function, const wchar_t* file, unsigned int line, uintptr_t pReserved) noexcept{std::wcerr << L"Invalid parameter detected:" << std::endl;std::wcerr << L"Expression: " << expression << std::endl;std::wcerr << L"Function: " << function << std::endl;std::wcerr << L"File: " << file << std::endl;std::wcerr << L"Line: " << line << std::endl;_CrtDumpMemoryLeaks();_CrtSetReportMode(_CRT_ASSERT, _CRTDBG_MODE_DEBUG);_CrtMemDumpAllObjectsSince(NULL);_CrtSetReportFile(_CRT_ASSERT, _CRTDBG_FILE_STDERR);// Make up an exception record for the current thread and CPU context// to make it possible for the crash processor to classify these// as do regular crashes, and to make it humane for developers to// analyze them.EXCEPTION_RECORD exception_record = {};CONTEXT exception_context = {};EXCEPTION_POINTERS exception_ptrs = { &exception_record, &exception_context };::RtlCaptureContext(&exception_context);exception_record.ExceptionCode = STATUS_INVALID_PARAMETER;// We store pointers to the the expression and function strings,// and the line as exception parameters to make them easy to// access by the developer on the far side.exception_record.NumberParameters = 4;exception_record.ExceptionInformation[0] = reinterpret_cast<ULONG_PTR>(expression);exception_record.ExceptionInformation[1] = reinterpret_cast<ULONG_PTR>(file);exception_record.ExceptionInformation[2] = line;exception_record.ExceptionInformation[3] = reinterpret_cast<ULONG_PTR>(function);// Deliver exceptions to unhandled exception handler.Seh_UnhandledExceptionFilter(&exception_ptrs);}
#endifstatic int Seh_NoncontinuableException() noexcept{// Make up an exception record for the current thread and CPU context// to make it possible for the crash processor to classify these// as do regular crashes, and to make it humane for developers to// analyze them.EXCEPTION_RECORD exception_record = {};CONTEXT exception_context = {};EXCEPTION_POINTERS exception_ptrs = { &exception_record, &exception_context };::RtlCaptureContext(&exception_context);exception_record.ExceptionCode = STATUS_NONCONTINUABLE_EXCEPTION;// We store pointers to the the expression and function strings,// and the line as exception parameters to make them easy to// access by the developer on the far side.exception_record.NumberParameters = 3;exception_record.ExceptionInformation[0] = NULL;exception_record.ExceptionInformation[1] = NULL;exception_record.ExceptionInformation[2] = 0;// Deliver exceptions to unhandled exception handler.return Seh_UnhandledExceptionFilter(&exception_ptrs);}static int __CRTDECL Crt_NewHandler(size_t) noexcept{return Seh_NoncontinuableException();}static void __CRTDECL Crt_HandlePureVirtualCall() noexcept{Seh_NoncontinuableException();}static void __CRTDECL Crt_TerminateHandler() noexcept{Seh_NoncontinuableException();}static void __CRTDECL Crt_UnexpectedHandler() noexcept{Seh_NoncontinuableException();}static void __CRTDECL Crt_SigabrtHandler(int) noexcept{Seh_NoncontinuableException();}这篇关于VC++ 各种未处理异常的处理，并输出DUMP崩溃转储调试文件的文章就介绍到这儿，希望我们推荐的文章对编程师们有所帮助！
