3 Commits

Author	SHA1	Message	Date
Arthur O'Dwyer	38db42d004	[libc++] [NFC] s/_LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_CONCEPTS)/!defined(_LIBCPP_HAS_NO_CONCEPTS)/ ... Per Discord discussion, we're normalizing on a simple `!defined(_LIBCPP_HAS_NO_CONCEPTS)` so that we can do a big search-and-replace for `!defined(_LIBCPP_HAS_NO_CONCEPTS)` back into `_LIBCPP_STD_VER > 17` when we're ready to abandon support for concept-syntax-less compilers. Differential Revision: https://reviews.llvm.org/D118748	2022-02-02 11:02:56 -05:00
Louis Dionne	f4c1258d56	[libc++] Add an option to disable wide character support in libc++ ... Some embedded platforms do not wish to support the C library functionality for handling wchar_t because they have no use for it. It makes sense for libc++ to work properly on those platforms, so this commit adds a carve-out of functionality for wchar_t. Unfortunately, unlike some other carve-outs (e.g. random device), this patch touches several parts of the library. However, despite the wide impact of this patch, I still think it is important to support this configuration since it makes it much simpler to port libc++ to some embedded platforms. Differential Revision: https://reviews.llvm.org/D111265	2021-10-12 06:08:23 -04:00
Christopher Di Bella	69d5a66621	[libcxx][modularisation] splits `<utility>` into self-contained headers ... * moves `std::hash` and `std::unary_function` into `__functional` * Everything else goes into `__utility/${NAME}.h` Differential Revision: https://reviews.llvm.org/D104002	2021-06-25 00:29:01 +00:00