bloodrun-editor/q3map2/libs/generic/arrayrange.h
2026-04-02 20:51:01 +08:00

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1.8 KiB
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/*
Copyright (C) 2001-2006, William Joseph.
All Rights Reserved.
This file is part of GtkRadiant.
GtkRadiant is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
GtkRadiant is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GtkRadiant; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#pragma once
#include <span>
// MSVC doesn't support CTAD for alias templates, so Span must be a class.
// Keep it layout-compatible with std::span by inheriting without adding members.
template<typename _Type, size_t _Extent = std::dynamic_extent>
struct Span : std::span<_Type, _Extent>
{
using std::span<_Type, _Extent>::span;
constexpr Span( std::span<_Type, _Extent> s ) noexcept : std::span<_Type, _Extent>( s ) {}
};
// deduction guides matching std::span
template<typename It, typename EndOrSize>
Span( It, EndOrSize ) -> Span<std::remove_reference_t<std::iter_reference_t<It>>>;
template<typename T, size_t N>
Span( T (&)[N] ) -> Span<T, N>;
template<typename T, size_t N>
Span( std::array<T, N>& ) -> Span<T, N>;
template<typename T, size_t N>
Span( const std::array<T, N>& ) -> Span<const T, N>;
template<typename R>
Span( R&& ) -> Span<std::remove_reference_t<std::ranges::range_reference_t<R&>>>;
using StringArrayRange = Span<const char *const>;
using StringRange = Span<const char>;