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42 lines
1.5 KiB
C++
42 lines
1.5 KiB
C++
/////////////////////////////////////////////////////////////////////////////////
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//
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// Copyright (C) 2026- Equinor ASA
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//
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// ResInsight is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// ResInsight is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE.
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//
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// See the GNU General Public License at <http://www.gnu.org/licenses/gpl.html>
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// for more details.
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//
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/////////////////////////////////////////////////////////////////////////////////
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#pragma once
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#include <format>
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#include <string_view>
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#include <QByteArray>
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#include <QString>
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// std::formatter specialization for QString. Include this header in any
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// translation unit that calls std::format with QString arguments.
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//
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// QString is encoded as UTF-8 before being formatted as a string_view; the
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// QByteArray holding the encoded bytes lives for the duration of the format()
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// call, which writes synchronously to the output iterator.
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template <>
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struct std::formatter<QString> : std::formatter<std::string_view>
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{
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auto format( const QString& value, std::format_context& ctx ) const
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{
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const QByteArray bytes = value.toUtf8();
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return std::formatter<std::string_view>::format( std::string_view{ bytes.constData(), static_cast<size_t>( bytes.size() ) }, ctx );
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}
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};
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