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

StackOverflow https://stackoverflow.com/questions/931150

  •  06-09-2019
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Question

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.

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Solution

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

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