llvm-project.git/libc/test/src/math/smoke/acospif16_test.cpp, branch users/mingmingl-llvm/samplefdo-profile-format Unnamed repository; edit this file 'description' to name the repository. [libc] Clean up errno header usage in a few math/smoke tests. (#157517) 2025-09-08T18:09:34+00:00 Alexey Samsonov vonosmas@gmail.com 2025-09-08T18:09:34+00:00 05502de64ccf1793a49e2f7c80ca1afe5d1e0f43 Most of the unit tests don't (or don't need to) read/write libc_errno code directly - it's cleared by the ErrnoCheckingTest harness, and is verified by framework-provided scripts such as EXPECT_MATH_ERRNO. Use the following rule of thumb for header inclusion: * 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 This PR only updates a few tests for acos/asin variants, as a proof-of-concept. If it goes in, a follow-up PR would update the rest. 
Most of the unit tests don't (or don't need to) read/write libc_errno
code directly - it's cleared by the ErrnoCheckingTest harness, and is
verified by framework-provided scripts such as EXPECT_MATH_ERRNO.

Use the following rule of thumb for header inclusion:
* 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

This PR only updates a few tests for acos/asin variants, as a
proof-of-concept. If it goes in, a follow-up PR would update the rest.
 [libc] Move libc_errno.h to libc/src/__support and make LIBC_ERRNO_MODE_SYSTEM to be header-only. (#143187) 2025-06-11T20:25:27+00:00 lntue lntue@google.com 2025-06-11T20:25:27+00:00 d87eea35fac5a34a841c637db8908128409a184e 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 
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
 [libc][math][c23] Add acospif16() function (#134664) 2025-04-24T22:03:24+00:00 Anton 44649959+amemov@users.noreply.github.com 2025-04-24T22:03:24+00:00 851f7c74213e8497afb2b2a3b7facb9faedf9f5f Addresses #132211 #132754 Part of #95250 
Addresses #132211  #132754
Part of #95250