Use the _MSVC_STL_UPDATE macro to detect STL #4267
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vitaut
requested changes
Dec 19, 2024
If the macro is not defined, it will be replaced with 0. The STL never defines _MSVC_STL_UPDATE as 0, so there is no visible difference here. However, if the code style requires it, I am glad to fix it. |
vitaut
approved these changes
Dec 19, 2024
|
Merged, thanks! |
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The current code's method of detecting the C++ standard library as STL is inaccurate, which will reject libc++ on Windows. The _MSVC_STL_UPDATE macro is the documented way. fmt currently requires Visual Studio 19.0, and this macro has existed since Visual Studio 15.5, so there are no compatibility issues.