AddressInfoIterator.hxx

#pragma once
 
// cosmos
#include <cosmos/error/RuntimeError.hxx>
#include <cosmos/net/AddressInfo.hxx>
 
namespace cosmos {
 
 
struct AddressInfoIterator {
public: // functions
 
        AddressInfoIterator() {}
 
        explicit AddressInfoIterator(const AddressInfo *pos) :
                m_pos{pos}
        {}
 
        auto& operator++() {
                if (!m_pos) {
                        cosmos_throw (RuntimeError("Attempt to increment past the end() AddressInfoIterator"));
                }
 
                m_pos = m_pos->next();
 
                return *this;
        }
 
        const AddressInfo& operator*() {
                if (!m_pos) {
                        cosmos_throw (RuntimeError("Attempt to dereference an invalid AddressInfoIterator"));
                }
 
                return *m_pos;
        }
 
        bool operator==(const AddressInfoIterator &other) const {
                return m_pos == other.m_pos;
        }
 
        bool operator!=(const AddressInfoIterator &other) const {
                return !(*this == other);
        }
 
protected: // data
 
        const AddressInfo *m_pos = nullptr;
};
 
} // end ns