Separate versioning compat in traits

This commit is contained in:
rexy712 2022-06-25 09:06:13 -07:00
parent 329a79c3ea
commit 5a6d7023ac
4 changed files with 137 additions and 54 deletions

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@ -0,0 +1,73 @@
/**
This file is a part of rexy's general purpose library
Copyright (C) 2022 rexy712
This program 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.
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, see <http://www.gnu.org/licenses/>.
*/
#ifndef REXY_COMPAT_CPP17_TRAITS_HPP
#define REXY_COMPAT_CPP17_TRAITS_HPP
namespace rexy{
template<class T>
struct remove_volatile{
using type = T;
};
template<class T>
struct remove_volatile<volatile T>{
using type = T;
};
template<class T>
using remove_volatile_t = typename remove_volatile<T>::type;
template<class T>
struct remove_const{
using type = T;
};
template<class T>
struct remove_const<const T>{
using type = T;
};
template<class T>
using remove_const_t = typename remove_const<T>::type;
template<class T>
struct remove_cv{
using type = remove_volatile_t<remove_const_t<T>>;
};
template<class T>
using remove_cv_t = typename remove_cv<T>::type;
template<class T>
struct remove_reference{
using type = T;
};
template<class T>
struct remove_reference<T&>{
using type = T;
};
template<class T>
struct remove_reference<T&&>{
using type = T;
};
template<class T>
using remove_reference_t = typename remove_reference<T>::type;
template<class T>
struct remove_cvref{
using type = remove_cv_t<remove_reference_t<T>>;
};
template<class T>
using remove_cvref_t = typename remove_cvref<T>::type;
}
#endif

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@ -0,0 +1,33 @@
/**
This file is a part of rexy's general purpose library
Copyright (C) 2022 rexy712
This program 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.
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, see <http://www.gnu.org/licenses/>.
*/
#ifndef REXY_COMPAT_CPP17_TRAITS_HPP
#define REXY_COMPAT_CPP17_TRAITS_HPP
#include <type_traits> //remove_cvref
namespace rexy{
template<class T>
struct remove_cvref : public std::remove_cvref<T>{};
template<class T>
using remove_cvref_t = typename remove_cvref<T>::type;
}
#endif

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@ -0,0 +1,29 @@
/**
This file is a part of rexy's general purpose library
Copyright (C) 2022 rexy712
This program 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.
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, see <http://www.gnu.org/licenses/>.
*/
#ifndef REXY_COMPAT_TRAITS_HPP
#define REXY_COMPAT_TRAITS_HPP
#ifdef REXY_STANDARD_CPP20
#include "cpp20/traits.hpp"
#else // REXY_STANDARD_CPP26
#include "cpp17/traits.hpp"
#endif // REXY_STANDARD_CPP26
#endif

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@ -1,6 +1,6 @@
/**
This file is a part of rexy's general purpose library
Copyright (C) 2020 rexy712
Copyright (C) 2020-2022 rexy712
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@ -22,6 +22,7 @@
#include <type_traits> //is_same, decay, integral_constant, declval
#include <iterator> //iterator_traits
#include "compat/traits.hpp"
#include "rexy.hpp"
namespace rexy{
@ -54,59 +55,6 @@ namespace rexy{
static constexpr bool value = std::is_same<std::true_type,decltype(test(static_cast<std::decay_t<T>*>(nullptr)))>::value;
};
#ifdef REXY_STANDARD_CPP20
template<class T>
struct remove_cvref : public std::remove_cvref<T>{};
template<class T>
using remove_cvref_t = typename remove_cvref<T>::type;
#else // REXY_STANDARD_CPP26
template<class T>
struct remove_volatile{
using type = T;
};
template<class T>
struct remove_volatile<volatile T>{
using type = T;
};
template<class T>
using remove_volatile_t = typename remove_volatile<T>::type;
template<class T>
struct remove_const{
using type = T;
};
template<class T>
struct remove_const<const T>{
using type = T;
};
template<class T>
using remove_const_t = typename remove_const<T>::type;
template<class T>
struct remove_cv{
using type = remove_volatile_t<remove_const_t<T>>;
};
template<class T>
using remove_cv_t = typename remove_cv<T>::type;
template<class T>
struct remove_reference{
using type = T;
};
template<class T>
struct remove_reference<T&>{
using type = T;
};
template<class T>
struct remove_reference<T&&>{
using type = T;
};
template<class T>
using remove_reference_t = typename remove_reference<T>::type;
template<class T>
struct remove_cvref{
using type = remove_cv_t<remove_reference_t<T>>;
};
template<class T>
using remove_cvref_t = typename remove_cvref<T>::type;
#endif // REXY_STANDARD_CPP26
template<class T, class = void>
struct is_dereferencable : public std::false_type{};