112 lines
3.4 KiB
C++
112 lines
3.4 KiB
C++
/* Copyright 2015, Michele Santullo
|
|
* This file is part of DoorKeeper.
|
|
*
|
|
* DoorKeeper 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 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* DoorKeeper 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 DoorKeeper. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef id170B0E6C34D14EBA9B92A35977BDBFB3
|
|
#define id170B0E6C34D14EBA9B92A35977BDBFB3
|
|
|
|
#include "doorkeeper/implem/sequence_bt.hpp"
|
|
#include <cstddef>
|
|
#include <iostream>
|
|
#include <stdexcept>
|
|
|
|
namespace dk {
|
|
namespace bt {
|
|
template <std::size_t S>
|
|
class string;
|
|
|
|
template <std::size_t S>
|
|
std::ostream& operator<< ( std::ostream& parStream, const string<S>& parString );
|
|
|
|
template <std::size_t S>
|
|
class string {
|
|
public:
|
|
friend std::ostream& operator<< <>( std::ostream& parStream, const string<S>& parString );
|
|
constexpr string ( const char* parString );
|
|
|
|
constexpr std::size_t size ( void ) const { return S - 1; }
|
|
template <std::size_t S2>
|
|
constexpr string<S + S2 - 1> operator+ ( const string<S2>& parOther ) const;
|
|
constexpr char operator[] ( std::size_t parIndex ) const;
|
|
|
|
template <typename... Args>
|
|
constexpr string ( Args... );
|
|
|
|
constexpr const char (&data_arr() const)[S] { return m_data; }
|
|
constexpr const char* data() const { return m_data; }
|
|
|
|
private:
|
|
template <std::size_t... I>
|
|
constexpr string ( const index_seq<I...>&, const char* parString );
|
|
|
|
const char m_data[S];
|
|
};
|
|
|
|
namespace implem {
|
|
template <std::size_t S, std::size_t S2, std::size_t... I>
|
|
constexpr string<S + S2 - 1> concat ( const index_seq<I...>&, const string<S>& parLeft, const string<S2>& parRight ) {
|
|
return string<S + S2 - 1>(
|
|
(I < S - 1 ? parLeft[I] : (I < S + S2 - 2 ? parRight[I - (S - 1)] : '\0'))...
|
|
);
|
|
}
|
|
|
|
} //namespace implem
|
|
|
|
template <std::size_t S>
|
|
template <std::size_t... I>
|
|
constexpr string<S>::string (const index_seq<I...>&, const char* parString) :
|
|
m_data{parString[I]...}
|
|
{
|
|
}
|
|
|
|
template <std::size_t S>
|
|
inline constexpr string<S>::string (const char* parString) :
|
|
string(index_range<0, S>(), parString)
|
|
{
|
|
}
|
|
|
|
template <std::size_t S>
|
|
template <typename... Args>
|
|
inline constexpr string<S>::string (Args... parArgs) :
|
|
m_data{parArgs...}
|
|
{
|
|
}
|
|
|
|
template <std::size_t S>
|
|
template <std::size_t S2>
|
|
constexpr inline string<S + S2 - 1> string<S>::operator+ (const string<S2>& parOther) const {
|
|
return implem::concat(index_range<0, S + S2 - 1>(), string<S>(m_data), parOther);
|
|
}
|
|
|
|
template <std::size_t S>
|
|
inline std::ostream& operator<< (std::ostream& parStream, const string<S>& parString) {
|
|
parStream << parString.m_data;
|
|
return parStream;
|
|
}
|
|
|
|
template <std::size_t S>
|
|
constexpr char string<S>::operator[] (std::size_t parIndex) const {
|
|
return (parIndex < S ? m_data[parIndex] : throw std::out_of_range(""));
|
|
}
|
|
|
|
template <std::size_t S>
|
|
constexpr string<S> make_string (const char (&parData)[S]) {
|
|
return string<S>(parData);
|
|
}
|
|
} //namespace bt
|
|
} //namespace dk
|
|
|
|
#endif
|