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2025-09-10[libc] Clean up errno header usage in math tests. (#157898)Alexey Samsonov
This is one more follow-up to PR https://github.com/llvm/llvm-project/pull/157517 that cleans up the usage of libc_errno in math unit-tests (non-smoke). It follows the same rule: * if you use libc_errno in code literally, include src/__support/libc_errno.h * if you only rely on errno constants, include hdr/errno_macros.h Several tests for exp/log still retain the direct libc_errno usage, since in some cases they skip doing any validation if the error was raised. But the direct usage of libc_errno is removed from all other cases.
2025-07-23[libc][NFC] Add stdint.h proxy header to fix dependency issue with ↵lntue
<stdint.h> includes. (#150303) https://github.com/llvm/llvm-project/issues/149993
2025-06-11[libc] Move libc_errno.h to libc/src/__support and make ↵lntue
LIBC_ERRNO_MODE_SYSTEM to be header-only. (#143187) This is the first step in preparation for: https://discourse.llvm.org/t/rfc-make-clang-builtin-math-functions-constexpr-with-llvm-libc-to-support-c-23-constexpr-math-functions/86450
2025-03-22[libc][math][c23] Add acoshf16 C23 math function. (#130588)Harrison Hao
Implementation of acoshf16 function for 16-bit inputs.