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/*
* This file is part of PowerDNS or dnsdist.
* Copyright -- PowerDNS.COM B.V. and its contributors
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* In addition, for the avoidance of any doubt, permission is granted to
* link this program with OpenSSL and to (re)distribute the binaries
* produced as the result of such linking.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#pragma once
#include <string_view>
namespace pdns::views
{
class UnsignedCharView
{
public:
UnsignedCharView(const char* data_, size_t size_) :
view(data_, size_)
{
}
// NOLINTBEGIN(cppcoreguidelines-pro-type-reinterpret-cast): No unsigned char view in C++17
UnsignedCharView(const unsigned char* data_, size_t size_) :
view(reinterpret_cast<const char*>(data_), size_)
{
}
using size_type = std::string_view::size_type;
[[nodiscard]] const unsigned char& at(size_type pos) const
{
return reinterpret_cast<const unsigned char&>(view.at(pos));
}
[[nodiscard]] const unsigned char& operator[](size_type pos) const
{
return reinterpret_cast<const unsigned char&>(view[pos]);
}
[[nodiscard]] const unsigned char* data() const
{
return reinterpret_cast<const unsigned char*>(view.data());
}
// NOLINTEND(cppcoreguidelines-pro-type-reinterpret-cast): No unsigned char view in C++17
[[nodiscard]] size_t size() const
{
return view.size();
}
[[nodiscard]] size_t length() const
{
return view.length();
}
private:
std::string_view view;
};
}
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