mirror of
https://github.com/bolero-MURAKAMI/Sprout
synced 2025-08-03 12:49:50 +00:00
add subscript_at function
This commit is contained in:
bolero-MURAKAMI
parent
8278a2642c
commit
0080332dd5
12 changed files with 341 additions and 54 deletions
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@ -35,6 +35,7 @@ namespace sprout_adl {
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sprout::not_found_via_adl range_empty(...);
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sprout::not_found_via_adl range_front(...);
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sprout::not_found_via_adl range_back(...);
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sprout::not_found_via_adl range_subscript_at(...);
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sprout::not_found_via_adl range_at(...);
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sprout::not_found_via_adl range_nth(...);
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sprout::not_found_via_adl range_index_of(...);
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@ -585,6 +586,89 @@ namespace sprout {
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return *sprout::next(sprout::begin(cont), sprout::size(cont) - 1);
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}
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template<typename T>
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struct has_mem_subscript_test {
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public:
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template<
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typename U = T,
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typename = typename sprout::identity<decltype(std::declval<U>()[std::declval<typename sprout::container_traits<U>::size_type>()])>::type
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>
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static sprout::true_type test(int);
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static sprout::false_type test(...);
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};
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#if defined(_MSC_VER) && (_MSC_VER > 1900)
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template<typename T, typename Base_ = typename sprout::identity<decltype(sprout::detail::has_mem_subscript_test<T>::test(0))>::type>
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struct has_mem_subscript
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: public Base_
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{};
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#else
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template<typename T>
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struct has_mem_subscript
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: public sprout::identity<decltype(sprout::detail::has_mem_subscript_test<T>::test(0))>::type
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{};
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#endif
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template<typename T>
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struct is_substitutable_const_subscript_at
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: public sprout::bool_constant<
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sprout::is_const_cast_convertible<
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typename sprout::container_traits<T const>::reference,
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typename sprout::container_traits<T>::reference
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>::value
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&& (
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sprout::detail::has_mem_subscript<T const>::value
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|| sprout::detail::has_mem_begin<T const>::value
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|| sprout::detail::has_adl_begin_without_sprout<T const&>::value
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)
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>
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{};
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template<typename Container>
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inline SPROUT_CONSTEXPR typename std::enable_if<
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sprout::detail::is_substitutable_const_subscript_at<Container>::value,
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typename sprout::container_traits<Container>::reference
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>::type
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range_subscript_at_impl(Container& cont, typename sprout::container_traits<Container>::size_type i) {
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typedef typename sprout::container_traits<Container>::reference type;
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return const_cast<type>(sprout::subscript_at(sprout::as_const(cont), i));
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}
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template<typename Container>
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inline SPROUT_CONSTEXPR typename std::enable_if<
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!sprout::detail::is_substitutable_const_subscript_at<Container>::value
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&& sprout::detail::has_mem_subscript<Container>::value
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,
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typename sprout::container_traits<Container>::reference
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>::type
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range_subscript_at_impl(Container& cont, typename sprout::container_traits<Container>::size_type i) {
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return cont[i];
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}
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template<typename Container>
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inline SPROUT_CONSTEXPR typename std::enable_if<
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!sprout::detail::is_substitutable_const_subscript_at<Container>::value
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&& !sprout::detail::has_mem_subscript<Container>::value
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,
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typename sprout::container_traits<Container>::reference
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>::type
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range_subscript_at_impl(Container& cont, typename sprout::container_traits<Container>::size_type i) {
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return *sprout::next(sprout::begin(cont), i);
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}
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template<typename Container>
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inline SPROUT_CONSTEXPR typename std::enable_if<
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sprout::detail::has_mem_subscript<Container const>::value,
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typename sprout::container_traits<Container const>::reference
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>::type
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range_subscript_at_impl(Container const& cont, typename sprout::container_traits<Container const>::size_type i) {
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return cont[i];
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}
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template<typename Container>
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inline SPROUT_CONSTEXPR typename std::enable_if<
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!sprout::detail::has_mem_subscript<Container const>::value,
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typename sprout::container_traits<Container const>::reference
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>::type
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range_subscript_at_impl(Container const& cont, typename sprout::container_traits<Container const>::size_type i) {
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return *sprout::next(sprout::begin(cont), i);
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}
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template<typename T>
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struct has_mem_at_test {
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public:
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@ -616,6 +700,7 @@ namespace sprout {
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>::value
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&& (
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sprout::detail::has_mem_at<T const>::value
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|| sprout::detail::has_mem_subscript<T const>::value
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|| sprout::detail::has_mem_begin<T const>::value
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|| sprout::detail::has_adl_begin_without_sprout<T const&>::value
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)
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@ -645,11 +730,23 @@ namespace sprout {
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inline SPROUT_CONSTEXPR typename std::enable_if<
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!sprout::detail::is_substitutable_const_at<Container>::value
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&& !sprout::detail::has_mem_at<Container>::value
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&& sprout::detail::has_mem_subscript<Container>::value
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,
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typename sprout::container_traits<Container>::reference
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>::type
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range_at_impl(Container& cont, typename sprout::container_traits<Container>::size_type i) {
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return *sprout::next(sprout::begin(cont), i);
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return cont[sprout::range_index_check(cont, i)];
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}
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template<typename Container>
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inline SPROUT_CONSTEXPR typename std::enable_if<
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!sprout::detail::is_substitutable_const_at<Container>::value
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&& !sprout::detail::has_mem_at<Container>::value
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&& !sprout::detail::has_mem_subscript<Container>::value
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,
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typename sprout::container_traits<Container>::reference
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>::type
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range_at_impl(Container& cont, typename sprout::container_traits<Container>::size_type i) {
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return *sprout::next(sprout::begin(cont), sprout::range_index_check(cont, i));
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}
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template<typename Container>
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inline SPROUT_CONSTEXPR typename std::enable_if<
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@ -661,11 +758,23 @@ namespace sprout {
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}
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template<typename Container>
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inline SPROUT_CONSTEXPR typename std::enable_if<
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!sprout::detail::has_mem_at<Container const>::value,
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!sprout::detail::has_mem_at<Container const>::value
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&& sprout::detail::has_mem_subscript<Container>::value
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,
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typename sprout::container_traits<Container const>::reference
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>::type
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range_at_impl(Container const& cont, typename sprout::container_traits<Container const>::size_type i) {
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return *sprout::next(sprout::begin(cont), i);
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return cont[sprout::range_index_check(cont, i)];
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}
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template<typename Container>
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inline SPROUT_CONSTEXPR typename std::enable_if<
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!sprout::detail::has_mem_at<Container const>::value
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&& !sprout::detail::has_mem_subscript<Container>::value
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,
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typename sprout::container_traits<Container const>::reference
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>::type
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range_at_impl(Container const& cont, typename sprout::container_traits<Container const>::size_type i) {
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return *sprout::next(sprout::begin(cont), sprout::range_index_check(cont, i));
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}
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template<typename T>
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@ -949,6 +1058,17 @@ namespace sprout_container_range_detail {
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return sprout::detail::range_back_impl(cont);
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}
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template<typename Container>
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inline SPROUT_CONSTEXPR typename sprout::container_traits<Container>::reference
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range_subscript_at(Container& cont, typename sprout::container_traits<Container>::size_type i) {
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return sprout::detail::range_subscript_at_impl(cont, i);
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}
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template<typename Container>
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inline SPROUT_CONSTEXPR typename sprout::container_traits<Container const>::reference
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range_subscript_at(Container const& cont, typename sprout::container_traits<Container const>::size_type i) {
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return sprout::detail::range_subscript_at_impl(cont, i);
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}
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template<typename Container>
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inline SPROUT_CONSTEXPR typename sprout::container_traits<Container>::reference
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range_at(Container& cont, typename sprout::container_traits<Container>::size_type i) {
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@ -1066,6 +1186,18 @@ namespace sprout {
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return range_back(cont);
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}
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static SPROUT_CONSTEXPR typename sprout::container_traits<Container>::reference
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range_subscript_at(Container& cont, typename sprout::container_traits<Container>::size_type i) {
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using sprout_container_range_detail::range_subscript_at;
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using sprout_adl::range_subscript_at;
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return range_subscript_at(cont, i);
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}
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static SPROUT_CONSTEXPR typename sprout::container_traits<Container const>::reference
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range_subscript_at(Container const& cont, typename sprout::container_traits<Container const>::size_type i) {
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using sprout_container_range_detail::range_subscript_at;
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using sprout_adl::range_subscript_at;
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return range_subscript_at(cont, i);
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}
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static SPROUT_CONSTEXPR typename sprout::container_traits<Container>::reference
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range_at(Container& cont, typename sprout::container_traits<Container>::size_type i) {
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using sprout_container_range_detail::range_at;
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using sprout_adl::range_at;
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@ -1149,6 +1281,10 @@ namespace sprout {
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return sprout::container_range_traits<Container>::range_back(cont);
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}
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static SPROUT_CONSTEXPR typename sprout::container_traits<Container const>::reference
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range_subscript_at(Container const& cont, typename sprout::container_traits<Container const>::size_type i) {
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return sprout::container_range_traits<Container>::range_subscript_at(cont, i);
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}
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static SPROUT_CONSTEXPR typename sprout::container_traits<Container const>::reference
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range_at(Container const& cont, typename sprout::container_traits<Container const>::size_type i) {
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return sprout::container_range_traits<Container>::range_at(cont, i);
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}
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@ -1231,6 +1367,14 @@ namespace sprout {
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return arr[N - 1];
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}
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static SPROUT_CONSTEXPR typename sprout::container_traits<T[N]>::reference
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range_subscript_at(T (& arr)[N], typename sprout::container_traits<T[N]>::size_type i) {
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return arr[i];
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}
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static SPROUT_CONSTEXPR typename sprout::container_traits<T const[N]>::reference
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range_subscript_at(T const (& arr)[N], typename sprout::container_traits<T const[N]>::size_type i) {
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return arr[i];
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}
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static SPROUT_CONSTEXPR typename sprout::container_traits<T[N]>::reference
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range_at(T (& arr)[N], typename sprout::container_traits<T[N]>::size_type i) {
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return arr[i];
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}
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@ -1301,6 +1445,10 @@ namespace sprout {
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return sprout::container_range_traits<T[N]>::range_back(arr);
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}
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static SPROUT_CONSTEXPR typename sprout::container_traits<T const[N]>::reference
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range_subscript_at(T const (& arr)[N], typename sprout::container_traits<T const[N]>::size_type i) {
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return sprout::container_range_traits<T[N]>::range_subscript_at(arr, i);
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}
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static SPROUT_CONSTEXPR typename sprout::container_traits<T const[N]>::reference
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range_at(T const (& arr)[N], typename sprout::container_traits<T const[N]>::size_type i) {
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return sprout::container_range_traits<T[N]>::range_at(arr, i);
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}
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@ -1325,8 +1473,11 @@ namespace sprout {
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#include <sprout/container/size.hpp>
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#include <sprout/container/front.hpp>
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#include <sprout/container/back.hpp>
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#include <sprout/container/subscript_at.hpp>
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#include <sprout/container/at.hpp>
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#include <sprout/container/nth.hpp>
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#include <sprout/container/index_of.hpp>
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#include <sprout/container/data.hpp>
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#include <sprout/container/range_index_check.hpp>
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#endif // #ifndef SPROUT_CONTAINER_CONTAINER_RANGE_TRAITS_HPP
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