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This patch implements formatting for std::filesystem::path from P2845R8, and defines the feature test macro __cpp_lib_format_path to 202403L, provided only in <filesystem>. Formatting options are performed (if applicable) in order: 'g', '?', transcoding, fill-and-align & width The standard specifies transcoding behaviour only when literal encoding is UTF-8, leaving all other cases implementation defined. Current implementation of filesystem::path assumes: * char encoding is UTF-8 * wchar_t encoding is either UTF-32 or UTF-16 libstdc++-v3/ChangeLog: * include/bits/fs_path.h: Include bits/formatfwd.h. (std::formatter<filesystem::path, _CharT>): Define. * include/bits/version.def (format_path): Define. * include/bits/version.h: Regenerate. * include/std/filesystem: Expose __cpp_lib_format_path. * testsuite/std/format/fs_path.cc: New test. Reviewed-by: Tomasz Kamiński <tkaminsk@redhat.com> Signed-off-by: Ivan Lazaric <ivan.lazaric1@gmail.com> Co-authored-by: Jonathan Wakely <jwakely@redhat.com>
62 lines
1.8 KiB
C++
62 lines
1.8 KiB
C++
// <filesystem> -*- C++ -*-
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// Copyright (C) 2014-2026 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// Under Section 7 of GPL version 3, you are granted additional
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// permissions described in the GCC Runtime Library Exception, version
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// 3.1, as published by the Free Software Foundation.
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// You should have received a copy of the GNU General Public License and
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// a copy of the GCC Runtime Library Exception along with this program;
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// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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// <http://www.gnu.org/licenses/>.
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/** @file include/filesystem
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* This is a Standard C++ Library header.
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* @ingroup filesystem
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*/
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#ifndef _GLIBCXX_FILESYSTEM
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#define _GLIBCXX_FILESYSTEM 1
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#ifdef _GLIBCXX_SYSHDR
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#pragma GCC system_header
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#endif
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#include <bits/requires_hosted.h>
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#define __glibcxx_want_filesystem
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#define __glibcxx_want_format_path
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#include <bits/version.h>
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#ifdef __cpp_lib_filesystem // C++ >= 17 && HOSTED
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/**
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* @defgroup filesystem File System
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*
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* Utilities for performing operations on file systems and their components,
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* such as paths, regular files, and directories.
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*
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* @since C++17
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*/
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#include <bits/fs_fwd.h>
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#include <bits/fs_path.h>
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#include <bits/fs_dir.h>
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#include <bits/fs_ops.h>
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#endif // __cpp_lib_filesystem
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#endif // _GLIBCXX_FILESYSTEM
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