/*
   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>;