zaphoyd/websocketpp — pull request #340 by dschmidt (2014-03-14 16:03:04+00:00)
Title: Use _WIN32 instead of WIN32 preprocessor directive

Hey,

MinGW only defines _WIN32 whereas MSVC defines both. Using _WIN32 is cleaner because it's not allowed to be defined by the user/programmer, but must come from the compiler.

The `defined` checks get rid of `warning: "_WIN32" is not defined` on other platforms.

Regards,
Dominik