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1151

answers:

1
Q: 

Where's _WIN64 defined in C++/CLI project compiled as x64?

It seems to be added automagically in every project I create and I compile for x64 but it doesn't even appear in the project's Configuration Properties/(C/C++)/Preprocessor when selecting the x64 configuration.

+3  A: 

_WIN64 is automatically defined by Visual Studio. See the list of Predefined Macros.

emddudley  2009-05-31 03:42:42

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