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/***************************************************************************
* Copyright (c) Johan Mabille, Sylvain Corlay and Wolf Vollprecht *
* Copyright (c) QuantStack *
* *
* Distributed under the terms of the BSD 3-Clause License. *
* *
* The full license is in the file LICENSE, distributed with this software. *
****************************************************************************/
#ifndef XOPTIONAL_ASSEMBLY_STORAGE_HPP
#define XOPTIONAL_ASSEMBLY_STORAGE_HPP
#include "xtl/xiterator_base.hpp"
#include "xoptional.hpp"
#include "xsemantic.hpp"
namespace xt
{
template <class VE, class FE, bool is_const>
class xoptional_assembly_storage_iterator;
/******************************
* xoptional_assembly_storage *
******************************/
template <class VE, class FE>
class xoptional_assembly_storage
{
public:
using self_type = xoptional_assembly_storage<VE, FE>;
using value_storage = std::remove_reference_t<VE>;
using flag_storage = std::remove_reference_t<FE>;
using value_type = xtl::xoptional<typename value_storage::value_type, typename flag_storage::value_type>;
static constexpr bool is_val_const = std::is_const<value_storage>::value;
static constexpr bool is_flag_const = std::is_const<flag_storage>::value;
using val_reference = std::conditional_t<is_val_const,
typename value_storage::const_reference,
typename value_storage::reference>;
using flag_reference = std::conditional_t<is_flag_const,
typename flag_storage::const_reference,
typename flag_storage::reference>;
using reference = xtl::xoptional<val_reference, flag_reference>;
using const_reference = xtl::xoptional<typename value_storage::const_reference, typename flag_storage::const_reference>;
using pointer = xtl::xclosure_pointer<reference>;
using const_pointer = xtl::xclosure_pointer<const_reference>;
using size_type = typename value_storage::size_type;
using difference_type = typename value_storage::difference_type;
using iterator = xoptional_assembly_storage_iterator<VE, FE, false>;
using const_iterator = xoptional_assembly_storage_iterator<VE, FE, true>;
using reverse_iterator = std::reverse_iterator<iterator>;
using const_reverse_iterator = std::reverse_iterator<const_iterator>;
template <class VE1, class FE1>
xoptional_assembly_storage(const VE1& value_stor, const FE1& flag_stor);
template <class VE1, class FE1>
xoptional_assembly_storage(VE1& value_stor, FE1& flag_stor);
xoptional_assembly_storage(const xoptional_assembly_storage&);
xoptional_assembly_storage& operator=(const xoptional_assembly_storage&);
xoptional_assembly_storage(xoptional_assembly_storage&&);
xoptional_assembly_storage& operator=(xoptional_assembly_storage&&);
bool empty() const noexcept;
size_type size() const noexcept;
void resize(size_type size);
reference operator[](size_type i);
const_reference operator[](size_type i) const;
reference front();
const_reference front() const;
reference back();
const_reference back() const;
pointer data() noexcept;
const_pointer data() const noexcept;
iterator begin() noexcept;
iterator end() noexcept;
const_iterator begin() const noexcept;
const_iterator end() const noexcept;
const_iterator cbegin() const noexcept;
const_iterator cend() const noexcept;
reverse_iterator rbegin() noexcept;
reverse_iterator rend() noexcept;
const_reverse_iterator rbegin() const noexcept;
const_reverse_iterator rend() const noexcept;
const_reverse_iterator crbegin() const noexcept;
const_reverse_iterator crend() const noexcept;
void swap(self_type& rhs) noexcept;
value_storage& value() noexcept;
const value_storage& value() const noexcept;
flag_storage& has_value() noexcept;
const flag_storage& has_value() const noexcept;
private:
VE m_value;
FE m_has_value;
};
template <class VE, class FE>
bool operator==(const xoptional_assembly_storage<VE, FE>& lhs, const xoptional_assembly_storage<VE, FE>& rhs);
template <class VE, class FE>
bool operator!=(const xoptional_assembly_storage<VE, FE>& lhs, const xoptional_assembly_storage<VE, FE>& rhs);
template <class VE, class FE>
bool operator<(const xoptional_assembly_storage<VE, FE>& lhs, const xoptional_assembly_storage<VE, FE>& rhs);
template <class VE, class FE>
bool operator<=(const xoptional_assembly_storage<VE, FE>& lhs, const xoptional_assembly_storage<VE, FE>& rhs);
template <class VE, class FE>
bool operator>(const xoptional_assembly_storage<VE, FE>& lhs, const xoptional_assembly_storage<VE, FE>& rhs);
template <class VE, class FE>
bool operator>=(const xoptional_assembly_storage<VE, FE>& lhs, const xoptional_assembly_storage<VE, FE>& rhs);
template <class VE, class FE>
void swap(xoptional_assembly_storage<VE, FE>& lhs, xoptional_assembly_storage<VE, FE>& rhs) noexcept;
/***************************************
* xoptional_assembly_storage_iterator *
***************************************/
template <class VE, class FE, bool is_const>
class xoptional_assembly_storage_iterator;
template <class VE, class FE, bool is_const>
struct xoptional_assembly_storage_iterator_traits
{
using iterator_type = xoptional_assembly_storage_iterator<VE, FE, is_const>;
using xoptional_assembly_storage_type = xoptional_assembly_storage<VE, FE>;
using value_type = typename xoptional_assembly_storage_type::value_type;
using reference = std::conditional_t<is_const,
typename xoptional_assembly_storage_type::const_reference,
typename xoptional_assembly_storage_type::reference>;
using difference_type = typename xoptional_assembly_storage_type::difference_type;
using pointer = std::conditional_t<is_const,
typename xoptional_assembly_storage_type::const_pointer,
typename xoptional_assembly_storage_type::pointer>;
};
template <class VE, class FE, bool is_const>
class xoptional_assembly_storage_iterator
: public xtl::xrandom_access_iterator_base2<xoptional_assembly_storage_iterator_traits<VE, FE, is_const>>
{
public:
using self_type = xoptional_assembly_storage_iterator<VE, FE, is_const>;
using base_type = xtl::xrandom_access_iterator_base2<xoptional_assembly_storage_iterator_traits<VE, FE, is_const>>;
using xoptional_assembly_storage_type = xoptional_assembly_storage<VE, FE>;
using value_iterator = std::conditional_t<is_const,
typename xoptional_assembly_storage_type::value_storage::const_iterator,
typename xoptional_assembly_storage_type::value_storage::iterator>;
using flag_iterator = std::conditional_t<is_const,
typename xoptional_assembly_storage_type::flag_storage::const_iterator,
typename xoptional_assembly_storage_type::flag_storage::iterator>;
using value_type = typename base_type::value_type;
using reference = typename base_type::reference;
using pointer = typename base_type::pointer;
using difference_type = typename base_type::difference_type;
xoptional_assembly_storage_iterator(value_iterator value_it, flag_iterator flag_it);
self_type& operator++();
self_type& operator--();
self_type& operator+=(difference_type n);
self_type& operator-=(difference_type n);
difference_type operator-(const self_type& rhs) const;
reference operator*() const;
pointer operator->() const;
bool operator==(const self_type& rhs) const;
bool operator<(const self_type& rhs) const;
private:
value_iterator m_value_it;
flag_iterator m_flag_it;
};
/*********************************************
* xoptional_assembly_storage implementation *
*********************************************/
template <class VE, class FE>
template <class VE1, class FE1>
inline xoptional_assembly_storage<VE, FE>::xoptional_assembly_storage(const VE1& value_stor, const FE1& flag_stor)
: m_value(value_stor), m_has_value(flag_stor)
{
}
template <class VE, class FE>
template <class VE1, class FE1>
inline xoptional_assembly_storage<VE, FE>::xoptional_assembly_storage(VE1& value_stor, FE1& flag_stor)
: m_value(value_stor), m_has_value(flag_stor)
{
}
template <class VE, class FE>
inline xoptional_assembly_storage<VE, FE>::xoptional_assembly_storage(const self_type& rhs)
: m_value(rhs.m_value), m_has_value(rhs.m_has_value)
{
}
template <class VE, class FE>
inline auto xoptional_assembly_storage<VE, FE>::operator=(const self_type& rhs) -> self_type&
{
m_value = rhs.m_value;
m_has_value = rhs.m_has_value;
return *this;
}
template <class VE, class FE>
inline xoptional_assembly_storage<VE, FE>::xoptional_assembly_storage(self_type&& rhs)
: m_value(std::forward<VE>(rhs.m_value)), m_has_value(std::forward<FE>(rhs.m_has_value))
{
}
template <class VE, class FE>
inline auto xoptional_assembly_storage<VE, FE>::operator=(self_type&& rhs) -> self_type&
{
m_value = std::forward<VE>(rhs.m_value);
m_has_value = std::forward<FE>(rhs.m_has_value);
return *this;
}
template <class VE, class FE>
inline bool xoptional_assembly_storage<VE, FE>::empty() const noexcept
{
return value().empty();
}
template <class VE, class FE>
inline auto xoptional_assembly_storage<VE, FE>::size() const noexcept -> size_type
{
return value().size();
}
template <class VE, class FE>
inline void xoptional_assembly_storage<VE, FE>::resize(size_type size)
{
value().resize(size);
has_value().resize(size);
}
template <class VE, class FE>
inline auto xoptional_assembly_storage<VE, FE>::operator[](size_type i) -> reference
{
return reference(value()[i], has_value()[i]);
}
template <class VE, class FE>
inline auto xoptional_assembly_storage<VE, FE>::operator[](size_type i) const -> const_reference
{
return const_reference(value()[i], has_value()[i]);
}
template <class VE, class FE>
inline auto xoptional_assembly_storage<VE, FE>::front() -> reference
{
return reference(value()[0], has_value()[0]);
}
template <class VE, class FE>
inline auto xoptional_assembly_storage<VE, FE>::front() const -> const_reference
{
return const_reference(value()[0], has_value()[0]);
}
template <class VE, class FE>
inline auto xoptional_assembly_storage<VE, FE>::back() -> reference
{
return reference(value()[size() - 1], has_value()[size() - 1]);
}
template <class VE, class FE>
inline auto xoptional_assembly_storage<VE, FE>::back() const -> const_reference
{
return const_reference(value()[size() - 1], has_value()[size() - 1]);
}
template <class VE, class FE>
inline auto xoptional_assembly_storage<VE, FE>::data() noexcept -> pointer
{
pointer(front());
}
template <class VE, class FE>
inline auto xoptional_assembly_storage<VE, FE>::data() const noexcept -> const_pointer
{
const_pointer(front());
}
template <class VE, class FE>
inline auto xoptional_assembly_storage<VE, FE>::begin() noexcept -> iterator
{
return iterator(value().begin(), has_value().begin());
}
template <class VE, class FE>
inline auto xoptional_assembly_storage<VE, FE>::end() noexcept -> iterator
{
return iterator(value().end(), has_value().end());
}
template <class VE, class FE>
inline auto xoptional_assembly_storage<VE, FE>::begin() const noexcept -> const_iterator
{
return cbegin();
}
template <class VE, class FE>
inline auto xoptional_assembly_storage<VE, FE>::end() const noexcept -> const_iterator
{
return cend();
}
template <class VE, class FE>
inline auto xoptional_assembly_storage<VE, FE>::cbegin() const noexcept -> const_iterator
{
return const_iterator(value().begin(), has_value().begin());
}
template <class VE, class FE>
inline auto xoptional_assembly_storage<VE, FE>::cend() const noexcept -> const_iterator
{
return const_iterator(value().end(), has_value().end());
}
template <class VE, class FE>
inline auto xoptional_assembly_storage<VE, FE>::rbegin() noexcept -> reverse_iterator
{
return reverse_iterator(end());
}
template <class VE, class FE>
inline auto xoptional_assembly_storage<VE, FE>::rend() noexcept -> reverse_iterator
{
return reverse_iterator(begin());
}
template <class VE, class FE>
inline auto xoptional_assembly_storage<VE, FE>::rbegin() const noexcept -> const_reverse_iterator
{
return crbegin();
}
template <class VE, class FE>
inline auto xoptional_assembly_storage<VE, FE>::rend() const noexcept -> const_reverse_iterator
{
return crend();
}
template <class VE, class FE>
inline auto xoptional_assembly_storage<VE, FE>::crbegin() const noexcept -> const_reverse_iterator
{
return const_reverse_iterator(cend());
}
template <class VE, class FE>
inline auto xoptional_assembly_storage<VE, FE>::crend() const noexcept -> const_reverse_iterator
{
return const_reverse_iterator(cbegin());
}
template <class VE, class FE>
inline void xoptional_assembly_storage<VE, FE>::swap(self_type& rhs) noexcept
{
m_value.swap(rhs.m_value);
m_has_value.swap(rhs.m_has_value);
}
template <class VE, class FE>
inline auto xoptional_assembly_storage<VE, FE>::value() noexcept -> value_storage&
{
return m_value;
}
template <class VE, class FE>
inline auto xoptional_assembly_storage<VE, FE>::value() const noexcept -> const value_storage&
{
return m_value;
}
template <class VE, class FE>
inline auto xoptional_assembly_storage<VE, FE>::has_value() noexcept -> flag_storage&
{
return m_has_value;
}
template <class VE, class FE>
inline auto xoptional_assembly_storage<VE, FE>::has_value() const noexcept -> const flag_storage&
{
return m_has_value;
}
template <class VE, class FE>
bool operator==(const xoptional_assembly_storage<VE, FE>& lhs, const xoptional_assembly_storage<VE, FE>& rhs)
{
return lhs.value() == rhs.value() && lhs.has_value() == rhs.has_value();
}
template <class VE, class FE>
bool operator!=(const xoptional_assembly_storage<VE, FE>& lhs, const xoptional_assembly_storage<VE, FE>& rhs)
{
return !(lhs == rhs);
}
template <class VE, class FE>
bool operator<(const xoptional_assembly_storage<VE, FE>& lhs, const xoptional_assembly_storage<VE, FE>& rhs)
{
return lhs.value() < rhs.value() && lhs.has_value() == rhs.has_value();
}
template <class VE, class FE>
bool operator<=(const xoptional_assembly_storage<VE, FE>& lhs, const xoptional_assembly_storage<VE, FE>& rhs)
{
return lhs.value() <= rhs.value() && lhs.has_value() == rhs.has_value();
}
template <class VE, class FE>
bool operator>(const xoptional_assembly_storage<VE, FE>& lhs, const xoptional_assembly_storage<VE, FE>& rhs)
{
return lhs.value() > rhs.value() && lhs.has_value() == rhs.has_value();
}
template <class VE, class FE>
bool operator>=(const xoptional_assembly_storage<VE, FE>& lhs, const xoptional_assembly_storage<VE, FE>& rhs)
{
return lhs.value() >= rhs.value() && lhs.has_value() == rhs.has_value();
}
template <class VE, class FE>
void swap(xoptional_assembly_storage<VE, FE>& lhs, xoptional_assembly_storage<VE, FE>& rhs) noexcept
{
lhs.swap(rhs);
}
/******************************************************
* xoptional_assembly_storage_iterator implementation *
******************************************************/
template <class VE, class FE, bool C>
inline xoptional_assembly_storage_iterator<VE, FE, C>::xoptional_assembly_storage_iterator(value_iterator value_it, flag_iterator flag_it)
: m_value_it(value_it), m_flag_it(flag_it)
{
}
template <class VE, class FE, bool C>
inline auto xoptional_assembly_storage_iterator<VE, FE, C>::operator++() -> self_type&
{
++m_value_it;
++m_flag_it;
return *this;
}
template <class VE, class FE, bool C>
inline auto xoptional_assembly_storage_iterator<VE, FE, C>::operator--() -> self_type&
{
--m_value_it;
--m_flag_it;
return *this;
}
template <class VE, class FE, bool C>
inline auto xoptional_assembly_storage_iterator<VE, FE, C>::operator+=(difference_type n) -> self_type&
{
m_value_it += n;
m_flag_it += n;
return *this;
}
template <class VE, class FE, bool C>
inline auto xoptional_assembly_storage_iterator<VE, FE, C>::operator-=(difference_type n) -> self_type&
{
m_value_it -= n;
m_flag_it -= n;
return *this;
}
template <class VE, class FE, bool C>
inline auto xoptional_assembly_storage_iterator<VE, FE, C>::operator-(const self_type& rhs) const -> difference_type
{
return m_value_it - rhs.m_value_it;
}
template <class VE, class FE, bool C>
inline auto xoptional_assembly_storage_iterator<VE, FE, C>::operator*() const -> reference
{
return reference(*m_value_it, *m_flag_it);
}
template <class VE, class FE, bool C>
inline auto xoptional_assembly_storage_iterator<VE, FE, C>::operator->() const -> pointer
{
return &(this->operator*());
}
template <class VE, class FE, bool C>
inline bool xoptional_assembly_storage_iterator<VE, FE, C>::operator==(const self_type& rhs) const
{
return m_value_it == rhs.m_value_it;
}
template <class VE, class FE, bool C>
inline bool xoptional_assembly_storage_iterator<VE, FE, C>::operator<(const self_type& rhs) const
{
return m_value_it < rhs.m_value_it;
}
template <class VE, class FE>
inline xoptional_assembly_storage<VE, FE> optional_assembly_storage(const VE& value, const FE& flag)
{
return xoptional_assembly_storage<VE, FE>(value, flag);
}
template <class VE, class FE>
inline xoptional_assembly_storage<VE, FE> optional_assembly_storage(VE& value, FE& flag)
{
return xoptional_assembly_storage<VE, FE>(value, flag);
}
}
#endif