what is difference btw /MD and /MDD in VisualStudio C++?

What is difference betwwen /MD and /MDD( multi threaded debug dll ) in c/c++->code generation

propertis of visual studio ....

Solution

They specify which runtime to use. Both use mmulti-threaded dynamic (DLL) runtimes, but the /MDD version uses the debug version and also defines the _DEBUG symbol for you. See this MSDN page for details.

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