[libcxx-commits] [libcxx] WIP - [libc++] P2872R2: Remove ``wstring_convert`` From C++26 (PR #87100)
Hristo Hristov via libcxx-commits
libcxx-commits at lists.llvm.org
Fri Mar 29 11:34:16 PDT 2024
https://github.com/H-G-Hristov updated https://github.com/llvm/llvm-project/pull/87100
>From 7bbc3e784a4290c078500764124ab01d1c2eae0b Mon Sep 17 00:00:00 2001
From: Hristo Hristov <hghristov.rmm at gmail.com>
Date: Fri, 29 Mar 2024 18:26:05 +0200
Subject: [PATCH 1/2] [libc++] P2872R2: Remove ``wstring_convert`` From C++26
Implements: https://wg21.link/P2872R2
---
libcxx/docs/ReleaseNotes/19.rst | 4 ++++
libcxx/include/locale | 8 ++++++--
libcxx/modules/std/locale.inc | 4 ++++
.../fstreams/fstream.cons/wchar_pointer.pass.cpp | 2 +-
.../fstreams/fstream.members/open_wchar_pointer.pass.cpp | 2 +-
.../fstreams/ofstream.cons/wchar_pointer.pass.cpp | 2 +-
.../fstreams/ofstream.members/open_wchar_pointer.pass.cpp | 2 +-
.../conversions/conversions.string/ctor_move.pass.cpp | 2 +-
.../conversions/conversions.buffer/ctor.pass.cpp | 2 +-
.../conversions/conversions.string/converted.pass.cpp | 2 +-
.../conversions/conversions.string/ctor_codecvt.pass.cpp | 2 +-
.../conversions.string/ctor_codecvt_state.pass.cpp | 2 +-
.../conversions/conversions.string/ctor_copy.pass.cpp | 2 +-
.../conversions.string/ctor_err_string.pass.cpp | 2 +-
.../conversions/conversions.string/depr.verify.cpp | 2 ++
.../conversions/conversions.string/from_bytes.pass.cpp | 2 +-
.../conversions/conversions.string/state.pass.cpp | 2 +-
.../conversions/conversions.string/to_bytes.pass.cpp | 2 +-
.../conversions/conversions.string/types.pass.cpp | 2 +-
19 files changed, 31 insertions(+), 17 deletions(-)
diff --git a/libcxx/docs/ReleaseNotes/19.rst b/libcxx/docs/ReleaseNotes/19.rst
index dd39c1bbbc78a3..8dacc7f8297235 100644
--- a/libcxx/docs/ReleaseNotes/19.rst
+++ b/libcxx/docs/ReleaseNotes/19.rst
@@ -42,6 +42,7 @@ Implemented Papers
- P2652R2 - Disallow User Specialization of ``allocator_traits``
- P2819R2 - Add ``tuple`` protocol to ``complex``
- P2495R3 - Interfacing ``stringstream``\s with ``string_view``
+- P2872R2 - Remove ``wstring_convert`` From C++26
- P2302R4 - ``std::ranges::contains``
- P1659R3 - ``std::ranges::starts_with`` and ``std::ranges::ends_with``
@@ -85,6 +86,9 @@ Deprecations and Removals
libatomic is not available. If you are one such user, please reach out to the libc++ developers so we can collaborate
on a path for supporting atomics properly on freestanding platforms.
+- The ``_LIBCPP_ENABLE_CXX26_REMOVED_WSTRING_CONVERT`` macro has been added to make the declarations in
+ ``<wstring_convert>`` available.
+
Upcoming Deprecations and Removals
----------------------------------
diff --git a/libcxx/include/locale b/libcxx/include/locale
index e3c63e3abe130e..748b276a852556 100644
--- a/libcxx/include/locale
+++ b/libcxx/include/locale
@@ -84,7 +84,7 @@ template <class charT> charT tolower(charT c, const locale& loc);
template<class Codecvt, class Elem = wchar_t,
class Wide_alloc = allocator<Elem>,
class Byte_alloc = allocator<char>>
-class wstring_convert
+class wstring_convert // Removed in C++26
{
public:
typedef basic_string<char, char_traits<char>, Byte_alloc> byte_string;
@@ -119,7 +119,7 @@ public:
};
template <class Codecvt, class Elem = wchar_t, class Tr = char_traits<Elem>>
-class wbuffer_convert
+class wbuffer_convert // Removed in C++26
: public basic_streambuf<Elem, Tr>
{
public:
@@ -3107,6 +3107,8 @@ extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS messages_byname<char>;
extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS messages_byname<wchar_t>;
#endif
+#if _LIBCPP_STD_VER < 26 || defined(_LIBCPP_ENABLE_CXX26_REMOVED_WSTRING_CONVERT)
+
template <class _Codecvt,
class _Elem = wchar_t,
class _WideAlloc = allocator<_Elem>,
@@ -3712,6 +3714,8 @@ wbuffer_convert<_Codecvt, _Elem, _Tr>* wbuffer_convert<_Codecvt, _Elem, _Tr>::__
_LIBCPP_SUPPRESS_DEPRECATED_POP
+#endif // _LIBCPP_STD_VER < 26 || defined(_LIBCPP_ENABLE_CXX26_REMOVED_WSTRING_CONVERT)
+
_LIBCPP_END_NAMESPACE_STD
_LIBCPP_POP_MACROS
diff --git a/libcxx/modules/std/locale.inc b/libcxx/modules/std/locale.inc
index c34f56530e98ce..b5fdcb509dd789 100644
--- a/libcxx/modules/std/locale.inc
+++ b/libcxx/modules/std/locale.inc
@@ -67,9 +67,13 @@ export namespace std {
using std::messages_base;
using std::messages_byname;
+ #if _LIBCPP_STD_VER < 26 || defined(_LIBCPP_ENABLE_CXX26_REMOVED_WSTRING_CONVERT)
+
// [depr.conversions.buffer]
using std::wbuffer_convert;
+ #endif // _LIBCPP_STD_VER < 26 || defined(_LIBCPP_ENABLE_CXX26_REMOVED_WSTRING_CONVERT)
+
// [depr.conversions.string]
using std::wstring_convert;
#endif // _LIBCPP_HAS_NO_LOCALIZATION
diff --git a/libcxx/test/libcxx/input.output/file.streams/fstreams/fstream.cons/wchar_pointer.pass.cpp b/libcxx/test/libcxx/input.output/file.streams/fstreams/fstream.cons/wchar_pointer.pass.cpp
index c2b23bba421bf0..652783fc651342 100644
--- a/libcxx/test/libcxx/input.output/file.streams/fstreams/fstream.cons/wchar_pointer.pass.cpp
+++ b/libcxx/test/libcxx/input.output/file.streams/fstreams/fstream.cons/wchar_pointer.pass.cpp
@@ -18,7 +18,7 @@
// UNSUPPORTED: no-wide-characters
// TODO: This should not be necessary
-// ADDITIONAL_COMPILE_FLAGS:-D_LIBCPP_ENABLE_CXX26_REMOVED_CODECVT
+// ADDITIONAL_COMPILE_FLAGS:-D_LIBCPP_ENABLE_CXX26_REMOVED_CODECVT -D_LIBCPP_ENABLE_CXX26_REMOVED_WSTRING_CONVERT
#include <fstream>
#include <cassert>
diff --git a/libcxx/test/libcxx/input.output/file.streams/fstreams/fstream.members/open_wchar_pointer.pass.cpp b/libcxx/test/libcxx/input.output/file.streams/fstreams/fstream.members/open_wchar_pointer.pass.cpp
index 9a5564fa9e11c1..b592492f848302 100644
--- a/libcxx/test/libcxx/input.output/file.streams/fstreams/fstream.members/open_wchar_pointer.pass.cpp
+++ b/libcxx/test/libcxx/input.output/file.streams/fstreams/fstream.members/open_wchar_pointer.pass.cpp
@@ -18,7 +18,7 @@
// UNSUPPORTED: no-wide-characters
// TODO: This should not be necessary
-// ADDITIONAL_COMPILE_FLAGS:-D_LIBCPP_ENABLE_CXX26_REMOVED_CODECVT
+// ADDITIONAL_COMPILE_FLAGS:-D_LIBCPP_ENABLE_CXX26_REMOVED_CODECVT -D_LIBCPP_ENABLE_CXX26_REMOVED_WSTRING_CONVERT
#include <fstream>
#include <cassert>
diff --git a/libcxx/test/libcxx/input.output/file.streams/fstreams/ofstream.cons/wchar_pointer.pass.cpp b/libcxx/test/libcxx/input.output/file.streams/fstreams/ofstream.cons/wchar_pointer.pass.cpp
index 185ee9e5f96a3f..3730e73648d304 100644
--- a/libcxx/test/libcxx/input.output/file.streams/fstreams/ofstream.cons/wchar_pointer.pass.cpp
+++ b/libcxx/test/libcxx/input.output/file.streams/fstreams/ofstream.cons/wchar_pointer.pass.cpp
@@ -18,7 +18,7 @@
// UNSUPPORTED: no-wide-characters
// TODO: This should not be necessary
-// ADDITIONAL_COMPILE_FLAGS:-D_LIBCPP_ENABLE_CXX26_REMOVED_CODECVT
+// ADDITIONAL_COMPILE_FLAGS:-D_LIBCPP_ENABLE_CXX26_REMOVED_CODECVT -D_LIBCPP_ENABLE_CXX26_REMOVED_WSTRING_CONVERT
#include <fstream>
#include <cassert>
diff --git a/libcxx/test/libcxx/input.output/file.streams/fstreams/ofstream.members/open_wchar_pointer.pass.cpp b/libcxx/test/libcxx/input.output/file.streams/fstreams/ofstream.members/open_wchar_pointer.pass.cpp
index 9403643ad6ab64..bfbbd5322161f6 100644
--- a/libcxx/test/libcxx/input.output/file.streams/fstreams/ofstream.members/open_wchar_pointer.pass.cpp
+++ b/libcxx/test/libcxx/input.output/file.streams/fstreams/ofstream.members/open_wchar_pointer.pass.cpp
@@ -18,7 +18,7 @@
// UNSUPPORTED: no-wide-characters
// TODO: This should not be necessary
-// ADDITIONAL_COMPILE_FLAGS:-D_LIBCPP_ENABLE_CXX26_REMOVED_CODECVT
+// ADDITIONAL_COMPILE_FLAGS:-D_LIBCPP_ENABLE_CXX26_REMOVED_CODECVT -D_LIBCPP_ENABLE_CXX26_REMOVED_WSTRING_CONVERT
#include <fstream>
#include <cassert>
diff --git a/libcxx/test/libcxx/localization/locales/locale.convenience/conversions/conversions.string/ctor_move.pass.cpp b/libcxx/test/libcxx/localization/locales/locale.convenience/conversions/conversions.string/ctor_move.pass.cpp
index 006bece21105b1..a536e6e9b04c60 100644
--- a/libcxx/test/libcxx/localization/locales/locale.convenience/conversions/conversions.string/ctor_move.pass.cpp
+++ b/libcxx/test/libcxx/localization/locales/locale.convenience/conversions/conversions.string/ctor_move.pass.cpp
@@ -10,7 +10,7 @@
// UNSUPPORTED: c++03
-// ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS -D_LIBCPP_ENABLE_CXX26_REMOVED_CODECVT
+// ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS -D_LIBCPP_ENABLE_CXX26_REMOVED_CODECVT -D_LIBCPP_ENABLE_CXX26_REMOVED_WSTRING_CONVERT
// <locale>
diff --git a/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.buffer/ctor.pass.cpp b/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.buffer/ctor.pass.cpp
index e99a85a8739811..fbc0bb4ace3acf 100644
--- a/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.buffer/ctor.pass.cpp
+++ b/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.buffer/ctor.pass.cpp
@@ -8,7 +8,7 @@
// <locale>
-// ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS -D_LIBCPP_ENABLE_CXX26_REMOVED_CODECVT
+// ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS -D_LIBCPP_ENABLE_CXX26_REMOVED_CODECVT -D_LIBCPP_ENABLE_CXX26_REMOVED_WSTRING_CONVERT
// wbuffer_convert<Codecvt, Elem, Tr>
diff --git a/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.string/converted.pass.cpp b/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.string/converted.pass.cpp
index 9627d2ca3312b4..5585ec86d771ac 100644
--- a/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.string/converted.pass.cpp
+++ b/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.string/converted.pass.cpp
@@ -8,7 +8,7 @@
// <locale>
-// ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS -D_LIBCPP_ENABLE_CXX26_REMOVED_CODECVT
+// ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS -D_LIBCPP_ENABLE_CXX26_REMOVED_CODECVT -D_LIBCPP_ENABLE_CXX26_REMOVED_WSTRING_CONVERT
// wstring_convert<Codecvt, Elem, Wide_alloc, Byte_alloc>
diff --git a/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.string/ctor_codecvt.pass.cpp b/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.string/ctor_codecvt.pass.cpp
index 76ccd1ac9f6de9..90dd81885ac21c 100644
--- a/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.string/ctor_codecvt.pass.cpp
+++ b/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.string/ctor_codecvt.pass.cpp
@@ -8,7 +8,7 @@
// <locale>
-// ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS -D_LIBCPP_ENABLE_CXX26_REMOVED_CODECVT
+// ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS -D_LIBCPP_ENABLE_CXX26_REMOVED_CODECVT -D_LIBCPP_ENABLE_CXX26_REMOVED_WSTRING_CONVERT
// wstring_convert<Codecvt, Elem, Wide_alloc, Byte_alloc>
diff --git a/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.string/ctor_codecvt_state.pass.cpp b/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.string/ctor_codecvt_state.pass.cpp
index 454576d8035d39..e55b21169d54b0 100644
--- a/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.string/ctor_codecvt_state.pass.cpp
+++ b/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.string/ctor_codecvt_state.pass.cpp
@@ -8,7 +8,7 @@
// <locale>
-// ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS -D_LIBCPP_ENABLE_CXX26_REMOVED_CODECVT
+// ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS -D_LIBCPP_ENABLE_CXX26_REMOVED_CODECVT -D_LIBCPP_ENABLE_CXX26_REMOVED_WSTRING_CONVERT
// wstring_convert<Codecvt, Elem, Wide_alloc, Byte_alloc>
diff --git a/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.string/ctor_copy.pass.cpp b/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.string/ctor_copy.pass.cpp
index 3d7d8c601c1bf9..27f878463b97f1 100644
--- a/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.string/ctor_copy.pass.cpp
+++ b/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.string/ctor_copy.pass.cpp
@@ -12,7 +12,7 @@
// <locale>
-// ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS -D_LIBCPP_ENABLE_CXX26_REMOVED_CODECVT
+// ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS -D_LIBCPP_ENABLE_CXX26_REMOVED_CODECVT -D_LIBCPP_ENABLE_CXX26_REMOVED_WSTRING_CONVERT
// wstring_convert<Codecvt, Elem, Wide_alloc, Byte_alloc>
diff --git a/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.string/ctor_err_string.pass.cpp b/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.string/ctor_err_string.pass.cpp
index e5da324196ff1c..937a276af04f56 100644
--- a/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.string/ctor_err_string.pass.cpp
+++ b/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.string/ctor_err_string.pass.cpp
@@ -8,7 +8,7 @@
// <locale>
-// ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS -D_LIBCPP_ENABLE_CXX26_REMOVED_CODECVT
+// ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS -D_LIBCPP_ENABLE_CXX26_REMOVED_CODECVT -D_LIBCPP_ENABLE_CXX26_REMOVED_WSTRING_CONVERT
// wstring_convert<Codecvt, Elem, Wide_alloc, Byte_alloc>
diff --git a/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.string/depr.verify.cpp b/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.string/depr.verify.cpp
index c520d34a23802b..f8bd156bdd5f6a 100644
--- a/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.string/depr.verify.cpp
+++ b/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.string/depr.verify.cpp
@@ -6,6 +6,8 @@
//
//===----------------------------------------------------------------------===//
+// ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_ENABLE_CXX26_REMOVED_WSTRING_CONVERT
+
// UNSUPPORTED: c++03, c++11, c++14, c++26
// UNSUPPORTED: no-wide-characters
diff --git a/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.string/from_bytes.pass.cpp b/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.string/from_bytes.pass.cpp
index f745cbc202d627..59939e1cf7c655 100644
--- a/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.string/from_bytes.pass.cpp
+++ b/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.string/from_bytes.pass.cpp
@@ -8,7 +8,7 @@
// <locale>
-// ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS -D_LIBCPP_ENABLE_CXX26_REMOVED_CODECVT
+// ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS -D_LIBCPP_ENABLE_CXX26_REMOVED_CODECVT -D_LIBCPP_ENABLE_CXX26_REMOVED_WSTRING_CONVERT
// wstring_convert<Codecvt, Elem, Wide_alloc, Byte_alloc>
diff --git a/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.string/state.pass.cpp b/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.string/state.pass.cpp
index d7e1989e6a1728..f59730c5b29d81 100644
--- a/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.string/state.pass.cpp
+++ b/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.string/state.pass.cpp
@@ -8,7 +8,7 @@
// <locale>
-// ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS -D_LIBCPP_ENABLE_CXX26_REMOVED_CODECVT
+// ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS -D_LIBCPP_ENABLE_CXX26_REMOVED_CODECVT -D_LIBCPP_ENABLE_CXX26_REMOVED_WSTRING_CONVERT
// wstring_convert<Codecvt, Elem, Wide_alloc, Byte_alloc>
diff --git a/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.string/to_bytes.pass.cpp b/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.string/to_bytes.pass.cpp
index 19ffdd57d2ecc9..8c5348477aee1e 100644
--- a/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.string/to_bytes.pass.cpp
+++ b/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.string/to_bytes.pass.cpp
@@ -8,7 +8,7 @@
// <locale>
-// ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS -D_LIBCPP_ENABLE_CXX26_REMOVED_CODECVT
+// ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS -D_LIBCPP_ENABLE_CXX26_REMOVED_CODECVT -D_LIBCPP_ENABLE_CXX26_REMOVED_WSTRING_CONVERT
// wstring_convert<Codecvt, Elem, Wide_alloc, Byte_alloc>
diff --git a/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.string/types.pass.cpp b/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.string/types.pass.cpp
index 1987a06a9048d4..bec4f7a1d80294 100644
--- a/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.string/types.pass.cpp
+++ b/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.string/types.pass.cpp
@@ -8,7 +8,7 @@
// <locale>
-// ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS -D_LIBCPP_ENABLE_CXX26_REMOVED_CODECVT
+// ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS -D_LIBCPP_ENABLE_CXX26_REMOVED_CODECVT -D_LIBCPP_ENABLE_CXX26_REMOVED_WSTRING_CONVERT
// template<class Codecvt, class Elem = wchar_t,
// class Wide_alloc = allocator<Elem>,
>From b2dd2bd58a96945295801cc994d0900ef1177a52 Mon Sep 17 00:00:00 2001
From: Hristo Hristov <hghristov.rmm at gmail.com>
Date: Fri, 29 Mar 2024 20:33:40 +0200
Subject: [PATCH 2/2] Fixed formatting
---
libcxx/modules/std/locale.inc | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/libcxx/modules/std/locale.inc b/libcxx/modules/std/locale.inc
index b5fdcb509dd789..606821c2b738cd 100644
--- a/libcxx/modules/std/locale.inc
+++ b/libcxx/modules/std/locale.inc
@@ -67,12 +67,12 @@ export namespace std {
using std::messages_base;
using std::messages_byname;
- #if _LIBCPP_STD_VER < 26 || defined(_LIBCPP_ENABLE_CXX26_REMOVED_WSTRING_CONVERT)
+ # if _LIBCPP_STD_VER < 26 || defined(_LIBCPP_ENABLE_CXX26_REMOVED_WSTRING_CONVERT)
// [depr.conversions.buffer]
using std::wbuffer_convert;
- #endif // _LIBCPP_STD_VER < 26 || defined(_LIBCPP_ENABLE_CXX26_REMOVED_WSTRING_CONVERT)
+ # endif // _LIBCPP_STD_VER < 26 || defined(_LIBCPP_ENABLE_CXX26_REMOVED_WSTRING_CONVERT)
// [depr.conversions.string]
using std::wstring_convert;
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