mirror of
https://github.com/bolero-MURAKAMI/Sprout
synced 2024-11-12 21:09:01 +00:00
329 lines
11 KiB
C++
329 lines
11 KiB
C++
/*=============================================================================
|
|
Copyright (c) 2011-2016 Bolero MURAKAMI
|
|
https://github.com/bolero-MURAKAMI/Sprout
|
|
|
|
Distributed under the Boost Software License, Version 1.0. (See accompanying
|
|
file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
|
|
=============================================================================*/
|
|
#ifndef SPROUT_ARRAY_ARRAY_HPP
|
|
#define SPROUT_ARRAY_ARRAY_HPP
|
|
|
|
#include <utility>
|
|
#include <type_traits>
|
|
#include <stdexcept>
|
|
#include <array>
|
|
#include <sprout/config.hpp>
|
|
#include <sprout/workaround/std/cstddef.hpp>
|
|
#include <sprout/index_tuple/metafunction.hpp>
|
|
#include <sprout/container/traits.hpp>
|
|
#include <sprout/container/functions.hpp>
|
|
#include <sprout/iterator/operation.hpp>
|
|
#include <sprout/iterator/reverse_iterator.hpp>
|
|
#include <sprout/iterator/const_iterator_cast.hpp>
|
|
#include <sprout/algorithm/cxx14/copy.hpp>
|
|
#include <sprout/algorithm/cxx14/move.hpp>
|
|
#include <sprout/algorithm/cxx14/fill_n.hpp>
|
|
#include <sprout/algorithm/cxx14/swap_ranges.hpp>
|
|
#include <sprout/utility/swap.hpp>
|
|
#include <sprout/type_traits/is_nothrow_copy_constructible.hpp>
|
|
#if SPROUT_USE_INDEX_ITERATOR_IMPLEMENTATION
|
|
# include <sprout/iterator/index_iterator.hpp>
|
|
#endif
|
|
|
|
namespace sprout {
|
|
//
|
|
// array
|
|
//
|
|
template<typename T, std::size_t N>
|
|
class array {
|
|
public:
|
|
typedef T value_type;
|
|
#if SPROUT_USE_INDEX_ITERATOR_IMPLEMENTATION
|
|
typedef sprout::index_iterator<array&, true> iterator;
|
|
typedef sprout::index_iterator<array const&, true> const_iterator;
|
|
#else
|
|
typedef T* iterator;
|
|
typedef T const* const_iterator;
|
|
#endif
|
|
typedef T& reference;
|
|
typedef T const& const_reference;
|
|
typedef std::size_t size_type;
|
|
typedef std::ptrdiff_t difference_type;
|
|
typedef T* pointer;
|
|
typedef T const* const_pointer;
|
|
typedef sprout::reverse_iterator<iterator> reverse_iterator;
|
|
typedef sprout::reverse_iterator<const_iterator> const_reverse_iterator;
|
|
public:
|
|
SPROUT_STATIC_CONSTEXPR size_type static_size = N;
|
|
private:
|
|
template<sprout::index_t Index>
|
|
static SPROUT_CONSTEXPR value_type const&
|
|
dummy_get(value_type const& value) {
|
|
return value;
|
|
}
|
|
template<sprout::index_t... Indexes>
|
|
static SPROUT_CONSTEXPR array
|
|
fill_impl(value_type const& value, sprout::index_tuple<Indexes...>) {
|
|
return array{{dummy_get<Indexes>(value)...}};
|
|
}
|
|
public:
|
|
value_type elems[static_size ? static_size : 1];
|
|
private:
|
|
template<sprout::index_t... Indexes>
|
|
SPROUT_CONSTEXPR std::array<T, N>
|
|
to_std_array(sprout::index_tuple<Indexes...>) const
|
|
SPROUT_NOEXCEPT_IF(sprout::is_nothrow_copy_constructible<typename std::remove_cv<T>::type>::value)
|
|
{
|
|
return std::array<T, N>{{elems[Indexes]...}};
|
|
}
|
|
public:
|
|
// construct/copy/destroy:
|
|
template<typename T2>
|
|
SPROUT_CXX14_CONSTEXPR array& operator=(array<T2, N> const& rhs) {
|
|
sprout::copy(rhs.begin(), rhs.end(), begin());
|
|
return *this;
|
|
}
|
|
template<typename T2>
|
|
SPROUT_CXX14_CONSTEXPR array& operator=(array<T2, N>&& rhs) {
|
|
sprout::move(rhs.begin(), rhs.end(), begin());
|
|
return *this;
|
|
}
|
|
// modifiers:
|
|
SPROUT_CXX14_CONSTEXPR void fill(const_reference value) {
|
|
sprout::fill_n(begin(), size(), value);
|
|
}
|
|
SPROUT_CONSTEXPR array fill(const_reference value) const {
|
|
return fill_impl(value, sprout::index_n<0, N>::make());
|
|
}
|
|
SPROUT_CXX14_CONSTEXPR void assign(const_reference value) {
|
|
fill(value);
|
|
}
|
|
SPROUT_CONSTEXPR array assign(const_reference value) const {
|
|
return fill(value);
|
|
}
|
|
SPROUT_CXX14_CONSTEXPR void swap(array& other)
|
|
SPROUT_NOEXCEPT_IF_EXPR(sprout::swap(std::declval<T&>(), std::declval<T&>()))
|
|
{
|
|
sprout::swap_ranges(other.begin(), other.end(), begin());
|
|
}
|
|
// iterators:
|
|
#if SPROUT_USE_INDEX_ITERATOR_IMPLEMENTATION
|
|
SPROUT_CXX14_CONSTEXPR iterator begin() SPROUT_NOEXCEPT {
|
|
return iterator(*this, 0);
|
|
}
|
|
SPROUT_CONSTEXPR const_iterator begin() const SPROUT_NOEXCEPT {
|
|
return const_iterator(*this, 0);
|
|
}
|
|
SPROUT_CXX14_CONSTEXPR iterator end() SPROUT_NOEXCEPT {
|
|
return iterator(*this, size());
|
|
}
|
|
SPROUT_CONSTEXPR const_iterator end() const SPROUT_NOEXCEPT {
|
|
return const_iterator(*this, size());
|
|
}
|
|
#else
|
|
SPROUT_CXX14_CONSTEXPR iterator begin() SPROUT_NOEXCEPT {
|
|
return iterator(elems);
|
|
}
|
|
SPROUT_CONSTEXPR const_iterator begin() const SPROUT_NOEXCEPT {
|
|
return iterator(elems);
|
|
}
|
|
SPROUT_CXX14_CONSTEXPR iterator end() SPROUT_NOEXCEPT {
|
|
return iterator(elems) + size();
|
|
}
|
|
SPROUT_CONSTEXPR const_iterator end() const SPROUT_NOEXCEPT {
|
|
return iterator(elems) + size();
|
|
}
|
|
#endif
|
|
SPROUT_CXX14_CONSTEXPR reverse_iterator rbegin() SPROUT_NOEXCEPT {
|
|
return reverse_iterator(end());
|
|
}
|
|
SPROUT_CONSTEXPR const_reverse_iterator rbegin() const SPROUT_NOEXCEPT {
|
|
return const_reverse_iterator(end());
|
|
}
|
|
SPROUT_CXX14_CONSTEXPR reverse_iterator rend() SPROUT_NOEXCEPT {
|
|
return reverse_iterator(begin());
|
|
}
|
|
SPROUT_CONSTEXPR const_reverse_iterator rend() const SPROUT_NOEXCEPT {
|
|
return const_reverse_iterator(begin());
|
|
}
|
|
#if SPROUT_USE_INDEX_ITERATOR_IMPLEMENTATION
|
|
SPROUT_CONSTEXPR const_iterator cbegin() const SPROUT_NOEXCEPT {
|
|
return const_iterator(*this, 0);
|
|
}
|
|
SPROUT_CONSTEXPR const_iterator cend() const SPROUT_NOEXCEPT {
|
|
return const_iterator(*this, size());
|
|
}
|
|
#else
|
|
SPROUT_CONSTEXPR const_iterator cbegin() const SPROUT_NOEXCEPT {
|
|
return const_iterator(elems);
|
|
}
|
|
SPROUT_CONSTEXPR const_iterator cend() const SPROUT_NOEXCEPT {
|
|
return const_iterator(elems) + size();
|
|
}
|
|
#endif
|
|
SPROUT_CONSTEXPR const_reverse_iterator crbegin() const SPROUT_NOEXCEPT {
|
|
return const_reverse_iterator(end());
|
|
}
|
|
SPROUT_CONSTEXPR const_reverse_iterator crend() const SPROUT_NOEXCEPT {
|
|
return const_reverse_iterator(begin());
|
|
}
|
|
// capacity:
|
|
SPROUT_CONSTEXPR size_type size() const SPROUT_NOEXCEPT {
|
|
return static_size;
|
|
}
|
|
SPROUT_CONSTEXPR size_type max_size() const SPROUT_NOEXCEPT {
|
|
return size();
|
|
}
|
|
SPROUT_CONSTEXPR bool empty() const SPROUT_NOEXCEPT {
|
|
return size() == 0;
|
|
}
|
|
// element access:
|
|
SPROUT_CXX14_CONSTEXPR reference operator[](size_type i) {
|
|
return elems[i];
|
|
}
|
|
SPROUT_CONSTEXPR const_reference operator[](size_type i) const {
|
|
return elems[i];
|
|
}
|
|
SPROUT_CXX14_CONSTEXPR reference at(size_type i) {
|
|
return i < size() ? elems[i]
|
|
: (throw std::out_of_range("array<>: index out of range"), elems[i])
|
|
;
|
|
}
|
|
SPROUT_CONSTEXPR const_reference at(size_type i) const {
|
|
return i < size() ? elems[i]
|
|
: (throw std::out_of_range("array<>: index out of range"), elems[i])
|
|
;
|
|
}
|
|
SPROUT_CXX14_CONSTEXPR reference front() {
|
|
return elems[0];
|
|
}
|
|
SPROUT_CONSTEXPR const_reference front() const {
|
|
return elems[0];
|
|
}
|
|
SPROUT_CXX14_CONSTEXPR reference back() {
|
|
return elems[size() - 1];
|
|
}
|
|
SPROUT_CONSTEXPR const_reference back() const {
|
|
return elems[size() - 1];
|
|
}
|
|
|
|
SPROUT_CXX14_CONSTEXPR pointer data() SPROUT_NOEXCEPT {
|
|
return elems;
|
|
}
|
|
SPROUT_CONSTEXPR const_pointer data() const SPROUT_NOEXCEPT {
|
|
return elems;
|
|
}
|
|
SPROUT_CXX14_CONSTEXPR pointer c_array() SPROUT_NOEXCEPT {
|
|
return data();
|
|
}
|
|
SPROUT_CONSTEXPR const_pointer c_array() const SPROUT_NOEXCEPT {
|
|
return data();
|
|
}
|
|
// others:
|
|
SPROUT_CXX14_CONSTEXPR void rangecheck(size_type i) const {
|
|
return i >= size() ? throw std::out_of_range("array<>: index out of range")
|
|
: (void)0
|
|
;
|
|
}
|
|
|
|
#if SPROUT_USE_INDEX_ITERATOR_IMPLEMENTATION
|
|
SPROUT_CXX14_CONSTEXPR iterator nth(size_type i) {
|
|
return i < size() ? iterator(*this, i)
|
|
: (throw std::out_of_range("array<>: index out of range"), iterator())
|
|
;
|
|
}
|
|
SPROUT_CONSTEXPR const_iterator nth(size_type i) const {
|
|
return i < size() ? const_iterator(*this, i)
|
|
: (throw std::out_of_range("array<>: index out of range"), const_iterator())
|
|
;
|
|
}
|
|
SPROUT_CXX14_CONSTEXPR size_type index_of(iterator p) SPROUT_NOEXCEPT {
|
|
return p.index();
|
|
}
|
|
SPROUT_CONSTEXPR size_type index_of(const_iterator p) const SPROUT_NOEXCEPT {
|
|
return p.index();
|
|
}
|
|
#else
|
|
SPROUT_CXX14_CONSTEXPR iterator nth(size_type i) {
|
|
return i < size() ? iterator(elems) + i
|
|
: (throw std::out_of_range("array<>: index out of range"), iterator())
|
|
;
|
|
}
|
|
SPROUT_CONSTEXPR const_iterator nth(size_type i) const {
|
|
return i < size() ? const_iterator(elems) + i
|
|
: (throw std::out_of_range("array<>: index out of range"), const_iterator())
|
|
;
|
|
}
|
|
SPROUT_CXX14_CONSTEXPR size_type index_of(iterator p) SPROUT_NOEXCEPT {
|
|
return sprout::distance(begin(), p);
|
|
}
|
|
SPROUT_CONSTEXPR size_type index_of(const_iterator p) const SPROUT_NOEXCEPT {
|
|
return sprout::distance(begin(), p);
|
|
}
|
|
#endif
|
|
|
|
SPROUT_CONSTEXPR operator std::array<T, N>() const
|
|
SPROUT_NOEXCEPT_IF(sprout::is_nothrow_copy_constructible<typename std::remove_cv<T>::type>::value)
|
|
{
|
|
return to_std_array(sprout::make_index_tuple<N>::make());
|
|
}
|
|
};
|
|
template<typename T, std::size_t N>
|
|
SPROUT_CONSTEXPR_OR_CONST typename sprout::array<T, N>::size_type sprout::array<T, N>::static_size;
|
|
|
|
//
|
|
// swap
|
|
//
|
|
template<typename T, std::size_t N>
|
|
inline SPROUT_CXX14_CONSTEXPR void
|
|
swap(sprout::array<T, N>& lhs, sprout::array<T, N>& rhs)
|
|
SPROUT_NOEXCEPT_IF_EXPR(lhs.swap(rhs))
|
|
{
|
|
lhs.swap(rhs);
|
|
}
|
|
|
|
//
|
|
// to_array
|
|
//
|
|
template<typename T, std::size_t N>
|
|
inline SPROUT_CONSTEXPR sprout::array<T, N>
|
|
to_array(sprout::array<T, N> const& arr)
|
|
SPROUT_NOEXCEPT_IF(sprout::is_nothrow_copy_constructible<T>::value)
|
|
{
|
|
return arr;
|
|
}
|
|
namespace detail {
|
|
template<typename T, std::size_t N, sprout::index_t... Indexes>
|
|
inline SPROUT_CONSTEXPR sprout::array<typename std::remove_cv<T>::type, N>
|
|
to_array_impl(T (& arr)[N], sprout::index_tuple<Indexes...>)
|
|
SPROUT_NOEXCEPT_IF(sprout::is_nothrow_copy_constructible<typename std::remove_cv<T>::type>::value)
|
|
{
|
|
return sprout::array<typename std::remove_cv<T>::type, N>{{arr[Indexes]...}};
|
|
}
|
|
} // namespace detail
|
|
template<typename T, std::size_t N>
|
|
inline SPROUT_CONSTEXPR sprout::array<typename std::remove_cv<T>::type, N>
|
|
to_array(T (& arr)[N])
|
|
SPROUT_NOEXCEPT_IF(sprout::is_nothrow_copy_constructible<typename std::remove_cv<T>::type>::value)
|
|
{
|
|
return sprout::detail::to_array_impl(arr, sprout::make_index_tuple<N>::make());
|
|
}
|
|
namespace detail {
|
|
template<typename T, std::size_t N, sprout::index_t... Indexes>
|
|
inline SPROUT_CONSTEXPR sprout::array<T, N>
|
|
to_array_impl(std::array<T, N> const& arr, sprout::index_tuple<Indexes...>)
|
|
SPROUT_NOEXCEPT_IF(sprout::is_nothrow_copy_constructible<T>::value)
|
|
{
|
|
return sprout::array<T, N>{{arr[Indexes]...}};
|
|
}
|
|
} // namespace detail
|
|
template<typename T, std::size_t N>
|
|
inline SPROUT_CONSTEXPR sprout::array<T, N>
|
|
to_array(std::array<T, N> const& arr)
|
|
SPROUT_NOEXCEPT_IF(sprout::is_nothrow_copy_constructible<T>::value)
|
|
{
|
|
return sprout::detail::to_array_impl(arr, sprout::make_index_tuple<N>::make());
|
|
}
|
|
} // namespace sprout
|
|
|
|
#endif // #ifndef SPROUT_ARRAY_ARRAY_HPP
|