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| git_commit |
commit 1a1264726db275d4b207c5bc640e2779dd484478 Author: Robin Caloudis <robin.caloudis@gmx.de> Date: Thu Sep 5 15:44:16 2024 +0200 [libc++][math] Add `constexpr` for `std::signbit()` (#105946) ## Why Since 18th of August, the floating point comparison builtin ``__builtin_signbit`` is available in Clang as constant expression (https://github.com/llvm/llvm-project/pull/94118). ## What * Implement `constexpr` for `std::signbit()` as defined by [P0533R9](https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2021/p0533r9.pdf) (new C++23 feature) * Restrict execution of tests to tip-of-trunk Clang as builtin is not yet available (note that builtin is available in GCC) |