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/*
* Copyright (c) 2021, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Concepts.h>
#include <AK/Traits.h>
#include <AK/Types.h>
namespace AK {
template<typename TEndIterator, IteratorPairWith<TEndIterator> TIterator, typename TUnaryPredicate>
[[nodiscard]] constexpr TIterator find_if(TIterator first, TEndIterator last, TUnaryPredicate&& pred)
{
for (; first != last; ++first) {
if (pred(*first)) {
return first;
}
}
return last;
}
template<typename TEndIterator, IteratorPairWith<TEndIterator> TIterator, typename T>
[[nodiscard]] constexpr TIterator find(TIterator first, TEndIterator last, T const& value)
{
return find_if(first, last, [&](auto const& v) { return Traits<T>::equals(value, v); });
}
template<typename TEndIterator, IteratorPairWith<TEndIterator> TIterator, typename T>
[[nodiscard]] constexpr size_t find_index(TIterator first, TEndIterator last, T const& value) requires(requires(TIterator it) { it.index(); })
{
return find_if(first, last, [&](auto const& v) { return Traits<T>::equals(value, v); }).index();
}
}
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