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/****************************************************************************
**
** Copyright (C) 2016 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 <cstddef>
#include <iterator>
namespace Utils {
namespace Internal {
template <class Category,
class Type,
typename DistanceType = ptrdiff_t,
typename Pointer = Type*,
typename Reference = Type&>
struct SmallStringIterator : public std::iterator<Category, Type, DistanceType, Pointer, Reference>
{
constexpr
SmallStringIterator() noexcept = default;
constexpr
SmallStringIterator(Pointer ptr) noexcept : pointer_(ptr)
{
}
SmallStringIterator operator++() noexcept
{
return ++pointer_;
}
SmallStringIterator operator++(int) noexcept
{
return pointer_++;
}
SmallStringIterator operator--() noexcept
{
return --pointer_;
}
SmallStringIterator operator--(int) noexcept
{
return pointer_--;
}
SmallStringIterator operator+(DistanceType difference) const noexcept
{
return pointer_ + difference;
}
SmallStringIterator operator-(DistanceType difference) const noexcept
{
return pointer_ - difference;
}
SmallStringIterator operator+(std::size_t difference) const noexcept
{
return pointer_ + difference;
}
SmallStringIterator operator-(std::size_t difference) const noexcept
{
return pointer_ - difference;
}
DistanceType operator-(SmallStringIterator other) const noexcept
{
return pointer_ - other.data();
}
SmallStringIterator operator+=(DistanceType difference) noexcept
{
return pointer_ += difference;
}
SmallStringIterator operator-=(DistanceType difference) noexcept
{
return pointer_ -= difference;
}
Reference operator*() noexcept
{
return *pointer_;
}
const Reference operator*() const noexcept
{
return *pointer_;
}
Pointer operator->() noexcept
{
return pointer_;
}
const Pointer operator->() const noexcept
{
return pointer_;
}
constexpr
bool operator==(SmallStringIterator other) const noexcept
{
return pointer_ == other.pointer_;
}
constexpr
bool operator!=(SmallStringIterator other) const noexcept
{
return pointer_ != other.pointer_;
}
constexpr
bool operator<(SmallStringIterator other) const noexcept
{
return pointer_ < other.pointer_;
}
Pointer data() noexcept
{
return pointer_;
}
const Pointer data() const noexcept
{
return pointer_;
}
private:
Pointer pointer_ = nullptr;
};
} // namespace Internal
} // namespace Utils
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