yuzu/src/common/algorithm.h

29 lines
998 B
C++
Raw Normal View History

2019-07-04 21:10:59 -04:00
// Copyright 2019 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <algorithm>
#include <functional>
2019-07-04 21:10:59 -04:00
// Algorithms that operate on iterators, much like the <algorithm> header.
//
// Note: If the algorithm is not general-purpose and/or doesn't operate on iterators,
// it should probably not be placed within this header.
2019-07-04 21:10:59 -04:00
namespace Common {
template <class ForwardIt, class T, class Compare = std::less<>>
[[nodiscard]] ForwardIt BinaryFind(ForwardIt first, ForwardIt last, const T& value,
Compare comp = {}) {
2019-07-04 21:10:59 -04:00
// Note: BOTH type T and the type after ForwardIt is dereferenced
// must be implicitly convertible to BOTH Type1 and Type2, used in Compare.
// This is stricter than lower_bound requirement (see above)
first = std::lower_bound(first, last, value, comp);
return first != last && !comp(value, *first) ? first : last;
}
} // namespace Common