Quite a bit of C++20-only code in the STL which uses C++20's Concepts feature is currently guarded with #ifdef __cpp_lib_concepts. __cpp_lib_concepts is defined in <yvals_core.h> only if ...

The STL/CLR Library provides an interface similar to the C++ Standard Library containers for use with C++ and the .NET Framework common language runtime (CLR). STL/CLR is completely separate from the ...