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6c4267fb17
Implements std::from_chars for float and double. The implementation uses LLVM-libc to do the real parsing. Since this is the first time libc++ uses LLVM-libc there is a bit of additional infrastructure code. The patch is based on the [RFC] Project Hand In Hand (LLVM-libc/libc++ code sharing) https://discourse.llvm.org/t/rfc-project-hand-in-hand-llvm-libc-libc-code-sharing/77701
This directory contains abi lists representing the symbols exported by the libc++ library. The lists are generated using libcxx/utils/generate_abi_list.py. Every time a symbol is added or removed from the libc++ library, each of the lists *MUST* be updated to reflect the changes. This can be done by using the `generate-cxx-abilist` CMake target. We do not keep an up-to-date ABI list for all the build configurations of libc++. Currently, only the default configuration on MacOS and Linux are supported.