https://github.com/GeorgeKA created https://github.com/llvm/llvm-project/pull/118360
PR for issue #78657 Updated clang/docs/LanguageExtensions.rst to detail the return value of __builtin_COLUMN for this implementation. -- Fyi, this is my first contribution, so please bear with me. There already appears to be a unit test for __builtin_COLUMN in clang/test/SemaCXX/source_location.cpp. >From 3856d6ccf8b10f85cee8d03a349eb768600bd0e0 Mon Sep 17 00:00:00 2001 From: GeorgeKA <k._asa...@hotmail.com> Date: Mon, 2 Dec 2024 13:34:22 -0500 Subject: [PATCH] [clang] Document the return value of __builtin_COLUMN PR for issue #78657 Updated clang/docs/LanguageExtensions.rst to detail the return value of __builtin_COLUMN for this implementation. --- clang/docs/LanguageExtensions.rst | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/clang/docs/LanguageExtensions.rst b/clang/docs/LanguageExtensions.rst index 3c9078bcdf8118..00466fd2e7f020 100644 --- a/clang/docs/LanguageExtensions.rst +++ b/clang/docs/LanguageExtensions.rst @@ -4514,9 +4514,13 @@ default member initializer, the invocation point is the location of the constructor or aggregate initialization used to create the object. Otherwise the invocation point is the same as the location of the builtin. -When the invocation point of ``__builtin_FUNCTION`` is not a function scope the +When the invocation point of ``__builtin_FUNCTION`` is not a function scope, the empty string is returned. +The builtin ``__builtin_COLUMN`` returns the offset from the start of the line, +beginning from column 1. `This may differ from other implementations. +<https://en.cppreference.com/w/cpp/utility/source_location/column>`_ + The builtin ``__builtin_source_location`` returns a pointer to constant static data of type ``std::source_location::__impl``. This type must have already been defined, and must contain exactly four fields: ``const char *_M_file_name``, _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
