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Age	Commit message (Collapse)	Author
2024-11-06	[libc++] Refactor the configuration macros to being always defined (#112094)	Nikolas Klauser
	This is a follow-up to #89178. This updates the `<__config_site>` macros.
2024-10-12	[libc++][RFC] Always define internal feature test macros (#89178)	Nikolas Klauser
	Currently, the library-internal feature test macros are only defined if the feature is not available, and always have the prefix `_LIBCPP_HAS_NO_`. This patch changes that, so that they are always defined and have the prefix `_LIBCPP_HAS_` instead. This changes the canonical use of these macros to `#if _LIBCPP_HAS_FEATURE`, which means that using an undefined macro (e.g. due to a missing include) is diagnosed now. While this is rather unlikely currently, a similar change in `<__configuration/availability.h>` caught a few bugs. This also improves readability, since it removes the double-negation of `#ifndef _LIBCPP_HAS_NO_FEATURE`. The current patch only touches the macros defined in `<__config>`. If people are happy with this approach, I'll make a follow-up PR to also change the macros defined in `<__config_site>`.
2024-05-03	[libc++][modules] Uses _LIBCPP_USING_IF_EXISTS. (#90409)	Mark de Wever
	This attribute is used in the headers. Not using this in the modules has led to several issues. Add them to the modules to avoid these errors in other placed.
2024-04-24	[libcxx] [modules] Add _LIBCPP_USING_IF_EXISTS on aligned_alloc (#89827)	Martin Storsjö
	This is missing e.g. on Windows. With this change, it's possible to make the libcxx std module work on mingw-w64 (although that requires a few fixes to those headers). In the regular cstdlib header, we have _LIBCPP_USING_IF_EXISTS flagged on every single reexported function (since a9c9183ca42629fa83cdda297d1d30c7bc1d7c91), but the modules seem to only have _LIBCPP_USING_IF_EXISTS set on a few individual functions, so far.
2024-01-22	[libc++][modules] Add using_if_exists attribute (#77559) (#78909)	Gareth Williamson
	libc on macOS does not provide at_quick_exit or quick_exit. This allows modules to build on macOS and defer any errors to usage site of these symbols. Fixes: https://github.com/llvm/llvm-project/issues/77559
2024-01-22	[libc++] Add "using-if-exists" to timespec_get in modules (#78686)	Dominik Wójt
	Picolibc does not provide timespec_get function. Adding "using-if-exists" attribute fixes the modules. This is a follow up patch for https://github.com/llvm/llvm-project/pull/78580
2023-12-09	[libc++][modules] Adds std.compat module. (#71438)	Mark de Wever
	This adds the std.compat module. The patch contains a bit of refactoring to avoid code duplication between the std and std.compat module. Implements parts of - P2465R3 Standard Library Modules std and std.compat