You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 

104 lines
2.8 KiB

/*
* Copyright 2019 by its authors. See AUTHORS.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef EFL_EINA_EINA_TUPLE_HH_
#define EFL_EINA_EINA_TUPLE_HH_
#include <eina_integer_sequence.hh>
#include <eina_logical.hh>
#include <tuple>
namespace efl { namespace eina { namespace _mpl {
template <typename A, typename... Args>
struct push_back;
template <template <typename... Args> class C, typename... Args, typename... AArgs>
struct push_back<C<Args...>, AArgs...>
{
typedef C<Args..., AArgs...> type;
};
template <typename A, typename... Args>
struct push_front;
template <template <typename... Args> class C, typename... Args, typename... AArgs>
struct push_front<C<Args...>, AArgs...>
{
typedef C<Args..., AArgs...> type;
};
template <typename A, std::size_t N = 1>
struct pop_front;
template <template <typename...> class C, typename T, typename... Args>
struct pop_front<C<T, Args...>, 1>
{
typedef C<Args...> type;
};
template <typename A, std::size_t N>
struct pop_front : pop_front<typename pop_front<A, 1>::type, N-1>
{
};
template <typename T, typename F, std::size_t... I>
void for_each_impl(T&& t, F&& f, eina::index_sequence<I...>)
{
std::initializer_list<int> l = { (f(std::get<I>(t)), 0)...};
static_cast<void>(l);
}
template <typename T, typename F>
void for_each(T&& t, F&& f)
{
_mpl::for_each_impl(t, f, eina::make_index_sequence
<std::tuple_size<typename std::remove_reference<T>::type>::value>());
}
template <typename T, typename Transform>
struct tuple_transform;
template <typename...T, typename Transform>
struct tuple_transform<std::tuple<T...>, Transform>
{
typedef std::tuple<typename Transform::template apply<T>::type...> type;
};
template <typename T, typename Tuple>
struct tuple_contains;
template <typename T, typename...Ts>
struct tuple_contains<T, std::tuple<Ts...> >
: _mpl::or_<std::is_same<T, Ts>::value...>
{
};
template <typename T, typename Tuple>
struct tuple_find : std::integral_constant<int, -1> {};
template <typename T, typename... Ts>
struct tuple_find<T, std::tuple<T, Ts...> > : std::integral_constant<std::size_t, 0> {};
template <typename T, typename T1, typename... Ts>
struct tuple_find<T, std::tuple<T1, Ts...> > : std::integral_constant
<std::size_t, 1 + tuple_find<T, std::tuple<Ts...> >::value> {};
} } }
#endif