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SqpIterator.h
54 lines | 1.5 KiB | text/x-c | CLexer
#ifndef SCIQLOP_SQPITERATOR_H
#define SCIQLOP_SQPITERATOR_H
#include "CoreGlobal.h"
/**
* @brief The SqpIterator class represents an iterator used in SciQlop. It defines all operators
* needed for a standard forward iterator
* @tparam T the type of object handled in iterator
* @sa http://www.cplusplus.com/reference/iterator/
*/
template <typename T>
class SCIQLOP_CORE_EXPORT SqpIterator {
public:
using iterator_category = std::forward_iterator_tag;
using value_type = const T;
using difference_type = std::ptrdiff_t;
using pointer = value_type *;
using reference = value_type &;
explicit SqpIterator(T value) : m_CurrentValue{std::move(value)} {}
virtual ~SqpIterator() noexcept = default;
SqpIterator(const SqpIterator &) = default;
SqpIterator &operator=(SqpIterator other) { swap(m_CurrentValue, other.m_CurrentValue); }
SqpIterator &operator++()
{
m_CurrentValue.next();
return *this;
}
SqpIterator &operator--()
{
m_CurrentValue.prev();
return *this;
}
const T *operator->() const { return &m_CurrentValue; }
const T &operator*() const { return m_CurrentValue; }
T *operator->() { return &m_CurrentValue; }
T &operator*() { return m_CurrentValue; }
bool operator==(const SqpIterator &other) const
{
return m_CurrentValue.equals(other.m_CurrentValue);
}
bool operator!=(const SqpIterator &other) const { return !(*this == other); }
private:
T m_CurrentValue;
};
#endif // SCIQLOP_SQPITERATOR_H