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/*
* libfud
* Copyright 2024 Dominick Allen
*
* 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 FUD_TYPE_TRAITS_HPP
#define FUD_TYPE_TRAITS_HPP
#include <cstddef>
#include <type_traits>
namespace fud {
template <template <class, size_t> class Container, typename T, size_t Size>
constexpr bool hasDuplicates(Container<T, Size> const& arr)
{
for (size_t iIdx = 1; iIdx < Size; iIdx++) {
for (size_t jIdx = 0; jIdx < iIdx; jIdx++) {
if (arr[iIdx] == arr[jIdx]) {
return true;
}
}
}
return false;
}
template <typename T, size_t Size>
struct Array;
template <typename T, T... Vs>
constexpr bool hasDuplicates()
{
static_assert(sizeof...(Vs) > 0);
constexpr Array<T, sizeof...(Vs)> arr{{Vs...}};
return hasDuplicates(arr);
}
template <template <class, size_t> class Container, typename T, T... Vs>
constexpr bool hasDuplicates()
{
static_assert(sizeof...(Vs) > 0);
constexpr Container<T, sizeof...(Vs)> arr{{Vs...}};
return hasDuplicates(arr);
}
template <typename...>
inline constexpr auto isUnique = std::true_type{};
template <typename T, typename... Rest>
inline constexpr auto
isUnique<T, Rest...> = std::bool_constant<(!std::is_same_v<T, Rest> && ...) && isUnique<Rest...>>{};
template <template <class, size_t> class Container, class T, size_t N>
constexpr bool allDifferentFrom(Container<T, N>& data, const T& value)
{
for (size_t i = 0; i < data.size(); ++i) {
if (data[i] == value) {
return false;
}
}
return true;
}
} // namespace fud
#endif
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