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111 lines
1.8 KiB
111 lines
1.8 KiB
#include "simplelist.h"
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template <class T>
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SimpleList<T>::SimpleList()
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:m_list(0)
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,m_current(0)
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,m_last(0)
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,m_size(0)
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{};
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template <class T>
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SimpleList<T>::~SimpleList()
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{
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clear();
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};
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template <class T>
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void SimpleList<T>::append(const T& text)
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{
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if (m_list==0)
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{
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m_list=new TemplNode<T>(text);
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m_last=m_list;
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}
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else
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{
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m_last->m_next=new TemplNode<T>(text);
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m_last=m_last->m_next;
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};
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m_size++;
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};
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template <class T>
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void SimpleList<T>::removeFirst()
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{
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if (m_list==0) return;
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TemplNode<T> *first=m_list;
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m_list=m_list->m_next;
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m_size--;
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if (m_list==0)
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m_last=0;
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m_current=0;
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delete first;
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};
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template <class T>
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void SimpleList<T>::clear()
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{
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while (m_list!=0)
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removeFirst();
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m_current=0;
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m_last=0;
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m_list=0;
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m_size=0;
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};
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template <class T>
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void SimpleList<T>::remove(T* item)
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{
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if (item==0) return;
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TemplNode<T>* pre(0);
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for (T* tmp=first(); tmp!=0; tmp=next())
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{
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if (tmp==item)
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{
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if (m_current==m_list)
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{
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removeFirst();
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return;
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}
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else
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{
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TemplNode<T> *succ=m_current->m_next;
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if (m_current==m_last)
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m_last=pre;
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delete m_current;
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pre->m_next=succ;
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m_size--;
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m_current=0;
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};
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};
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pre=m_current;
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};
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};
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template <class T>
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T* SimpleList<T>::first()
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{
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m_current=m_list;
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if (m_list==0)
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return 0;
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return &m_current->m_item;
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};
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template <class T>
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T* SimpleList<T>::next()
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{
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if (m_current==0) return 0;
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m_current=m_current->m_next;
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if (m_current==0) return 0;
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return &m_current->m_item;
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};
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template <class T>
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int SimpleList<T>::size()
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{
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return m_size;
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}
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