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/****************************************************************************
**
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
****************************************************************************/
#pragma once
#include <utils/smallstringio.h>
#include <iterator>
#include <QDebug>
namespace ClangBackEnd {
template <typename Iterator>
class Found
{
public:
Iterator iterator;
bool wasFound;
};
template<typename ForwardIterator,
typename Type,
typename Compare>
Found<ForwardIterator> findInSorted(ForwardIterator first, ForwardIterator last, const Type& value, Compare compare)
{
ForwardIterator current;
using DifferenceType = typename std::iterator_traits<ForwardIterator>::difference_type;
DifferenceType count{std::distance(first, last)};
DifferenceType step;
while (count > 0) {
current = first;
step = count / 2;
std::advance(current, step);
auto comparison = compare(*current, value);
if (comparison < 0) {
first = ++current;
count -= step + 1;
} else if (comparison > 0) {
count = step;
} else {
return {current, true};
}
}
return {first, false};
}
} // namespace ClangBackEnd
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