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[libc++][NFC] Remove _LIBCPP_FREESTANDING (#176907)

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`_LIBCPP_FREESTANDING` isn't used and it is unclear what libc++'s
strategy is going to be for implementing freestanding at the moment.
Therefore, remove the macro.
This commit is contained in:
Nikolas Klauser 2026-01-29 10:13:32 +01:00 committed by GitHub
parent 12c13e0009
commit ba0cddb43e
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GPG Key ID: B5690EEEBB952194
4 changed files with 0 additions and 48 deletions
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4
libcxx/include/__config
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@ -38,10 +38,6 @@
# define _LIBCPP_CONCAT(_X, _Y) _LIBCPP_CONCAT_IMPL(_X, _Y)
# define _LIBCPP_CONCAT3(X, Y, Z) _LIBCPP_CONCAT(X, _LIBCPP_CONCAT(Y, Z))
# if __STDC_HOSTED__ == 0
# define _LIBCPP_FREESTANDING
# endif
# define _LIBCPP_TOSTRING2(x) #x
# define _LIBCPP_TOSTRING(x) _LIBCPP_TOSTRING2(x)

4
libcxx/include/__cxx03/__config
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@ -32,10 +32,6 @@
# define _LIBCPP_CONCAT_IMPL(_X, _Y) _X##_Y
# define _LIBCPP_CONCAT(_X, _Y) _LIBCPP_CONCAT_IMPL(_X, _Y)
# if __STDC_HOSTED__ == 0
# define _LIBCPP_FREESTANDING
# endif
// HARDENING {
// This is for backward compatibility -- make enabling `_LIBCPP_ENABLE_ASSERTIONS` (which predates hardening modes)

20
libcxx/test/libcxx-03/libcpp_freestanding.sh.cpp
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@ -1,20 +0,0 @@
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// Test that _LIBCPP_FREESTANDING is not defined when -ffreestanding is not passed
// to the compiler but defined when -ffreestanding is passed to the compiler.
// RUN: %{cxx} %{flags} %{compile_flags} -fsyntax-only %s
// RUN: %{cxx} %{flags} %{compile_flags} -fsyntax-only -ffreestanding -DFREESTANDING %s
#include <__config>
#if defined(FREESTANDING) != defined(_LIBCPP_FREESTANDING)
#error _LIBCPP_FREESTANDING should be defined in freestanding mode and not \
defined in non-freestanding mode
#endif

20
libcxx/test/libcxx/libcpp_freestanding.sh.cpp
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@ -1,20 +0,0 @@
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// Test that _LIBCPP_FREESTANDING is not defined when -ffreestanding is not passed
// to the compiler but defined when -ffreestanding is passed to the compiler.
// RUN: %{cxx} %{flags} %{compile_flags} -fsyntax-only %s
// RUN: %{cxx} %{flags} %{compile_flags} -fsyntax-only -ffreestanding -DFREESTANDING %s
#include <__config>
#if defined(FREESTANDING) != defined(_LIBCPP_FREESTANDING)
#error _LIBCPP_FREESTANDING should be defined in freestanding mode and not \
defined in non-freestanding mode
#endif