기본 디버깅 함수입니다.~ 자세한 내용은 디버깅 어플리케이션 또는,msdn에 DEBUG ROUTINES~

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_ASSERT	Evaluate an expression and generates a debug report when the result is FALSE	System::Diagnostics::Debug::Assert
_ASSERTE	Similar to _ASSERT, but includes the failed expression in the generated report	System::Diagnostics::Debug::Assert
_CrtCheckMemory	Confirm the integrity of the memory blocks allocated on the debug heap	System::Diagnostics::PerformanceCounter
_CrtDbgBreak	Sets a break point.	Not applicable. To call the standard C function, use PInvoke. For more information, see Platform Invoke Examples.
_CrtDbgReport, _CrtDbgReportW	Generate a debug report with a user message and send the report to three possible destinations	System::Diagnostics::Debug::Write, System::Diagnostics::Debug::Writeline, System::Diagnostics::Debug::WriteIf, System::Diagnostics::Debug::WriteLineIf
_CrtDoForAllClientObjects	Call an application-supplied function for all _CLIENT_BLOCK types on the heap	Not applicable. To call the standard C function, use PInvoke. For more information, see Platform Invoke Examples.
_CrtDumpMemoryLeaks	Dump all of the memory blocks on the debug heap when a significant memory leak has occurred	Not applicable. To call the standard C function, use PInvoke. For more information, see Platform Invoke Examples.
_CrtIsMemoryBlock	Verify that a specified memory block is located within the local heap and that it has a valid debug heap block type identifier	Not applicable. To call the standard C function, use PInvoke. For more information, see Platform Invoke Examples.
_CrtIsValidHeapPointer	Verifies that a specified pointer is in the local heap	Not applicable. To call the standard C function, use PInvoke. For more information, see Platform Invoke Examples.
_CrtIsValidPointer	Verify that a specified memory range is valid for reading and writing	Not applicable. To call the standard C function, use PInvoke. For more information, see Platform Invoke Examples.
_CrtMemCheckpoint	Obtain the current state of the debug heap and store it in an application-supplied _CrtMemState structure	Not applicable. To call the standard C function, use PInvoke. For more information, see Platform Invoke Examples.
_CrtMemDifference	Compare two memory states for significant differences and return the results	Not applicable. To call the standard C function, use PInvoke. For more information, see Platform Invoke Examples.
_CrtMemDumpAllObjectsSince	Dump information about objects on the heap since a specified checkpoint was taken or from the start of program execution	Not applicable. To call the standard C function, use PInvoke. For more information, see Platform Invoke Examples.
_CrtMemDumpStatistics	Dump the debug header information for a specified memory state in a user-readable form	System::Diagnostics::PerformanceCounter
_CrtReportBlockType	Returns the block type/subtype associated with a given debug heap block pointer.	Not applicable. To call the standard C function, use PInvoke. For more information, see Platform Invoke Examples.
_CrtSetAllocHook	Install a client-defined allocation function by hooking it into the C run-time debug memory allocation process	Not applicable. To call the standard C function, use PInvoke. For more information, see Platform Invoke Examples.
_CrtSetBreakAlloc	Set a breakpoint on a specified object allocation order number	Not applicable. To call the standard C function, use PInvoke. For more information, see Platform Invoke Examples.
_CrtSetDbgFlag	Retrieve or modify the state of the _crtDbgFlag flag to control the allocation behavior of the debug heap manager	Not applicable. To call the standard C function, use PInvoke. For more information, see Platform Invoke Examples.
_CrtSetDumpClient	Install an application-defined function that is called every time a debug dump function is called to dump _CLIENT_BLOCK type memory blocks	Not applicable. To call the standard C function, use PInvoke. For more information, see Platform Invoke Examples.
_CrtSetReportFile	Identify the file or stream to be used as a destination for a specific report type by _CrtDbgReport	Not applicable. To call the standard C function, use PInvoke. For more information, see Platform Invoke Examples.
_CrtSetReportHook	Install a client-defined reporting function by hooking it into the C run-time debug reporting process	Not applicable. To call the standard C function, use PInvoke. For more information, see Platform Invoke Examples.
_CrtSetReportHook2, _CrtSetReportHookW2	Installs or uninstalls a client-defined reporting function by hooking it into the C run-time debug reporting process.	Not applicable. To call the standard C function, use PInvoke. For more information, see Platform Invoke Examples.
_CrtSetReportMode	Specify the general destination(s) for a specific report type generated by _CrtDbgReport	Not applicable. To call the standard C function, use PInvoke. For more information, see Platform Invoke Examples.
_RPT[0,1,2,3,4]	Track the application's progress by generating a debug report by calling _CrtDbgReport with a format string and a variable number of arguments. Provides no source file and line number information.	Not applicable. To call the standard C function, use PInvoke. For more information, see Platform Invoke Examples.
_RPTF[0,1,2,3,4]	Similar to the _RPTn macros, but provides the source file name and line number where the report request originated	Not applicable. To call the standard C function, use PInvoke. For more information, see Platform Invoke Examples.
_calloc_dbg	Allocate a specified number of memory blocks on the heap with additional space for a debugging header and overwrite buffers	Not applicable. To call the standard C function, use PInvoke. For more information, see Platform Invoke Examples.
_expand_dbg	Resize a specified block of memory on the heap by expanding or contracting the block	Not applicable. To call the standard C function, use PInvoke. For more information, see Platform Invoke Examples.
_free_dbg	Free a block of memory on the heap	Not applicable. To call the standard C function, use PInvoke. For more information, see Platform Invoke Examples.
_fullpath_dbg, _wfullpath_dbg	Create an absolute or full path name for the specified relative path name, using _malloc_dbg to allocate memory.	System::IO::File::Create
_getcwd_dbg, _wgetcwd_dbg	Get the current working directory, using _malloc_dbg to allocate memory.	Not applicable. To call the standard C function, use PInvoke. For more information, see Platform Invoke Examples.
_malloc_dbg	Allocate a block of memory on the heap with additional space for a debugging header and overwrite buffers	Not applicable. To call the standard C function, use PInvoke. For more information, see Platform Invoke Examples.
_msize_dbg	Calculate the size of a block of memory on the heap	Not applicable. To call the standard C function, use PInvoke. For more information, see Platform Invoke Examples.
_realloc_dbg	Reallocate a specified block of memory on the heap by moving and/or resizing the block	Not applicable. To call the standard C function, use PInvoke. For more information, see Platform Invoke Examples.
_strdup_dbg, _wcsdup_dbg	Duplicates a string, using _malloc_dbg to allocate memory.	System::String::Clone
_tempnam_dbg, _wtempnam_dbg	Generate names you can use to create temporary files, using _malloc_dbg to allocate memory.	Not applicable. To call the standard C function, use PInvoke. For more information, see Platform Invoke Examples.