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[libc++][format] Implements P3107R5 in <print>. #130500

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[libc++][format] Implements P3107R5 in <print>. #130500

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c132aa5
[libc++][format] Implements P3107R5 in <print>.
mordante Mar 30, 2024
4fcce8d
Cleanups and improvements.
mordante Mar 13, 2025
b190535
Final polish and fixes.
mordante Mar 16, 2025
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2 changes: 1 addition & 1 deletion libcxx/docs/FeatureTestMacroTable.rst
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Expand Up @@ -358,7 +358,7 @@ Status
---------------------------------------------------------- -----------------
``__cpp_lib_out_ptr`` ``202106L``
---------------------------------------------------------- -----------------
``__cpp_lib_print`` ``202207L``
``__cpp_lib_print`` ``202403L``
---------------------------------------------------------- -----------------
``__cpp_lib_ranges`` ``202406L``
---------------------------------------------------------- -----------------
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1 change: 1 addition & 0 deletions libcxx/docs/ReleaseNotes/21.rst
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Expand Up @@ -40,6 +40,7 @@ Implemented Papers

- N4258: Cleaning-up noexcept in the Library (`Github <https://github.com/llvm/llvm-project/issues/99937>`__)
- P1361R2: Integration of chrono with text formatting (`Github <https://github.com/llvm/llvm-project/issues/100014>`__)
- P3107R5 - Permit an efficient implementation of ``std::print`` (`Github <https://github.com/llvm/llvm-project/issues/105435>`__)

Improvements and New Features
-----------------------------
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2 changes: 1 addition & 1 deletion libcxx/docs/Status/Cxx2cPapers.csv
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Expand Up @@ -50,7 +50,7 @@
"`P2867R2 <https://wg21.link/P2867R2>`__","Remove Deprecated ``strstreams`` From C++26","2024-03 (Tokyo)","|Complete|","19",""
"`P2869R4 <https://wg21.link/P2869R4>`__","Remove Deprecated ``shared_ptr`` Atomic Access APIs from C++26","2024-03 (Tokyo)","","",""
"`P2872R3 <https://wg21.link/P2872R3>`__","Remove ``wstring_convert`` From C++26","2024-03 (Tokyo)","|Complete|","19",""
"`P3107R5 <https://wg21.link/P3107R5>`__","Permit an efficient implementation of ``std::print``","2024-03 (Tokyo)","","",""
"`P3107R5 <https://wg21.link/P3107R5>`__","Permit an efficient implementation of ``std::print``","2024-03 (Tokyo)","|Complete|","21",""
"`P3142R0 <https://wg21.link/P3142R0>`__","Printing Blank Lines with ``println``","2024-03 (Tokyo)","|Complete|","19","Implemented as a DR against C++23. (MSVC STL and libstdc++ will do the same.)"
"`P2845R8 <https://wg21.link/P2845R8>`__","Formatting of ``std::filesystem::path``","2024-03 (Tokyo)","","",""
"`P0493R5 <https://wg21.link/P0493R5>`__","Atomic minimum/maximum","2024-03 (Tokyo)","","",""
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4 changes: 2 additions & 2 deletions libcxx/include/__ostream/print.h
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Expand Up @@ -111,9 +111,9 @@ _LIBCPP_HIDE_FROM_ABI void __vprint_unicode(ostream& __os, string_view __fmt, fo
ostream::sentry __s(__os);
if (__s) {
# ifndef _LIBCPP_WIN32API
__print::__vprint_unicode_posix(__file, __fmt, __args, __write_nl, true);
__print::__vprint_unicode_posix<__print::__lock_policy::__stdio>(__file, __fmt, __args, __write_nl, true);
# elif _LIBCPP_HAS_WIDE_CHARACTERS
__print::__vprint_unicode_windows(__file, __fmt, __args, __write_nl, true);
__print::__vprint_unicode_windows<__print::__lock_policy::__stdio>(__file, __fmt, __args, __write_nl, true);
# else
# error "Windows builds with wchar_t disabled are not supported."
# endif
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