C언어로 자료구조를 배우고 있습니다. <div><br></div> <div>배우고 있는 책에 리스트ADT를 이용한 라인 에디터 코드가 있어 이를 단순 연결리스트가 아닌 이중 연결리스트로 구현해 보려고 시도했는데요,</div> <div><br></div> <div>간단히 insert_node와 add함수만 잠깐 수정해주면 될 줄 알았더니 0번 라인에 입력하니 프로그램이 종료되는 현상이 발생하네요.. 아마 수정한 코드에서 오류가 발생한 것이 아닐까 한데 문제는 이 수정한 코드들도 책 안에 있는 코드를 따온 것이란 겁니다.. 어디가 잘못된건지 감이 안잡히네요 ㅠㅠ</div> <div><br></div> <div>제가 한 작업은 단순히 ListNode구조체에 link대신 llink와 rlink로 포인터를 부여하였고, insert_node함수를 단순 연결리스트의 함수가 아닌 이중 연결리스트의 삽입 함수로 변경한 것이 다입니다. <span class="Apple-tab-span" style="white-space:pre;"> </span>디버깅을 해보니 46번째줄 코드에서 에러가 나오네요..</div> <div><br></div> <div>0번에 입력할때는 프로그램이 종료되고, 1번이나 2번 다른 라인에 입력할때는 오류가 출력되는 대신 아무것도 저장되질 않습니다.. 대체 뭘 수정해야 정상적으로 작동할까요? 도움이 절실합니다!</div> <div><br></div> <div><div class="colorscripter-code" style="color:#f0f0f0;overflow:auto;font-family:Consolas, 'Liberation Mono', Menlo, Courier, monospace;"> <table class="colorscripter-code-table" style="margin:0px;padding:0px;border:none;background-color:#272727;" cellspacing="0" 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style="padding:0px 6px;white-space:pre;line-height:130%;"><span style="color:#0086b3;">#include</span> <span style="color:#ff3399;"><</span>string.h<span style="color:#ff3399;">></span></div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"><span style="color:#0086b3;">#include</span> <span style="color:#ff3399;"><</span>limits.h<span style="color:#ff3399;">></span></div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"><span style="color:#0086b3;">#include</span> <span style="color:#ff3399;"><</span>malloc.h<span style="color:#ff3399;">></span></div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"> </div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"> </div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"><span style="color:#0086b3;">#define</span> MAX_CHAR_PER_LINE <span style="color:#c10aff;">1000</span></div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"><span style="color:#0086b3;">#define</span> MAX_NAME <span style="color:#c10aff;">256</span></div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"><span style="color:#ff3399;">void</span> warning(<span style="color:#4be6fa;">char</span> <span style="color:#ff3399;">*</span>);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"><span style="color:#ff3399;">void</span> error(<span style="color:#4be6fa;">char</span> <span style="color:#ff3399;">*</span>);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"> </div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"><span style="color:#0086b3;">#define</span> FALSE <span style="color:#c10aff;">0</span></div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"><span style="color:#0086b3;">#define</span> TRUE <span style="color:#c10aff;">1</span></div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"> </div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"><span style="color:#ff3399;">typedef</span> <span style="color:#ff3399;">struct</span>{</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#4be6fa;">char</span> a[MAX_CHAR_PER_LINE];</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">} element;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"> </div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"><span style="color:#ff3399;">typedef</span> <span style="color:#ff3399;">struct</span> ListNode{</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    element data;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#ff3399;">struct</span> ListNode <span style="color:#ff3399;">*</span>llink;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#ff3399;">struct</span> ListNode <span style="color:#ff3399;">*</span>rlink;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">} ListNode;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"> </div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"><span style="color:#ff3399;">typedef</span> <span style="color:#ff3399;">struct</span>{</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    ListNode <span style="color:#ff3399;">*</span>head;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#4be6fa;">int</span> length;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">} LinkedListType;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"> </div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"><span style="color:#ff3399;">void</span> init(LinkedListType <span style="color:#ff3399;">*</span>list) <span style="color:#999999;">// List의 초기화</span></div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">{</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#ff3399;">if</span>(list<span style="color:#ff3399;">=</span><span style="color:#ff3399;">=</span>NULL) <span style="color:#ff3399;">return</span>;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    list<span style="color:#ff3399;">-</span><span style="color:#ff3399;">></span>length<span style="color:#ff3399;">=</span><span style="color:#c10aff;">0</span>;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    list<span style="color:#ff3399;">-</span><span style="color:#ff3399;">></span>head<span style="color:#ff3399;">=</span>NULL;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">}</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"> </div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"><span style="color:#ff3399;">void</span> insert_node(ListNode <span style="color:#ff3399;">*</span>before, ListNode <span style="color:#ff3399;">*</span>new_node)</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">{</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    new_node<span style="color:#ff3399;">-</span><span style="color:#ff3399;">></span>llink<span style="color:#ff3399;">=</span>before;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    new_node<span style="color:#ff3399;">-</span><span style="color:#ff3399;">></span>rlink<span style="color:#ff3399;">=</span>before<span style="color:#ff3399;">-</span><span style="color:#ff3399;">></span>rlink;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    before<span style="color:#ff3399;">-</span><span style="color:#ff3399;">></span>rlink<span style="color:#ff3399;">-</span><span style="color:#ff3399;">></span>llink<span style="color:#ff3399;">=</span>new_node;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    before<span style="color:#ff3399;">-</span><span style="color:#ff3399;">></span>rlink<span style="color:#ff3399;">=</span>new_node;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">}</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"> </div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"><span style="color:#ff3399;">void</span> remove_node(ListNode <span style="color:#ff3399;">*</span>phead_node, ListNode <span style="color:#ff3399;">*</span>removed)</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">{</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#ff3399;">if</span>(removed<span style="color:#ff3399;">=</span><span style="color:#ff3399;">=</span>phead_node) <span style="color:#ff3399;">return</span>;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    removed<span style="color:#ff3399;">-</span><span style="color:#ff3399;">></span>llink<span style="color:#ff3399;">-</span><span style="color:#ff3399;">></span>rlink<span style="color:#ff3399;">=</span>removed<span style="color:#ff3399;">-</span><span style="color:#ff3399;">></span>rlink;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    removed<span style="color:#ff3399;">-</span><span style="color:#ff3399;">></span>rlink<span style="color:#ff3399;">-</span><span style="color:#ff3399;">></span>llink<span style="color:#ff3399;">=</span>removed<span style="color:#ff3399;">-</span><span style="color:#ff3399;">></span>llink;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    free(removed);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">}</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"> </div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">ListNode <span style="color:#ff3399;">*</span>get_node_at(LinkedListType <span style="color:#ff3399;">*</span>list, <span style="color:#4be6fa;">int</span> pos)</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">{</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#4be6fa;">int</span> i;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    ListNode <span style="color:#ff3399;">*</span>tmp_node<span style="color:#ff3399;">=</span>list<span style="color:#ff3399;">-</span><span style="color:#ff3399;">></span>head;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#ff3399;">if</span>(pos<span style="color:#ff3399;"><</span><span style="color:#c10aff;">0</span>) <span style="color:#ff3399;">return</span> NULL;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#ff3399;">for</span>(i<span style="color:#ff3399;">=</span><span style="color:#c10aff;">0</span>;i<span style="color:#ff3399;"><</span>pos;i<span style="color:#ff3399;">+</span><span style="color:#ff3399;">+</span>) tmp_node<span style="color:#ff3399;">=</span>tmp_node<span style="color:#ff3399;">-</span><span style="color:#ff3399;">></span>rlink;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#ff3399;">return</span> tmp_node;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">}</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"> </div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"><span style="color:#4be6fa;">int</span> get_length(LinkedListType <span style="color:#ff3399;">*</span>list){</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#ff3399;">return</span> list<span style="color:#ff3399;">-</span><span style="color:#ff3399;">></span>length;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">}</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"> </div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"><span style="color:#ff3399;">void</span> add(LinkedListType <span style="color:#ff3399;">*</span>list, <span style="color:#4be6fa;">int</span> position, element data)</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">{</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    ListNode <span style="color:#ff3399;">*</span>p;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#ff3399;">if</span>((position<span style="color:#ff3399;">></span><span style="color:#ff3399;">=</span><span style="color:#c10aff;">0</span>)&&(position<span style="color:#ff3399;"><</span><span style="color:#ff3399;">=</span>list<span style="color:#ff3399;">-</span><span style="color:#ff3399;">></span>length)){</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">        ListNode <span style="color:#ff3399;">*</span>node<span style="color:#ff3399;">=</span>(ListNode <span style="color:#ff3399;">*</span>)malloc(<span style="color:#ff3399;">sizeof</span>(ListNode));</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">        <span style="color:#ff3399;">if</span>(node<span style="color:#ff3399;">=</span><span style="color:#ff3399;">=</span>NULL) error(<span style="color:#ffd500;">"Memory Allocate ERROR!"</span>);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">        node<span style="color:#ff3399;">-</span><span style="color:#ff3399;">></span>data<span style="color:#ff3399;">=</span>data;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">        p<span style="color:#ff3399;">=</span>get_node_at(list, position<span style="color:#ff3399;">-</span><span style="color:#c10aff;">1</span>);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">        insert_node(p, node);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">        list<span style="color:#ff3399;">-</span><span style="color:#ff3399;">></span>length<span style="color:#ff3399;">+</span><span style="color:#ff3399;">+</span>;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    }</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">}</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"> </div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"><span style="color:#ff3399;">void</span> add_last(LinkedListType <span style="color:#ff3399;">*</span>list, element data)</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">{</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    add(list,get_length(list),data);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">}</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"> </div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"><span style="color:#ff3399;">void</span> add_first(LinkedListType <span style="color:#ff3399;">*</span>list, element data)</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">{</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    add(list, <span style="color:#c10aff;">0</span>, data);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">}</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"> </div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"><span style="color:#4be6fa;">int</span> is_empty(LinkedListType <span style="color:#ff3399;">*</span>list)</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">{</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#ff3399;">if</span>(list<span style="color:#ff3399;">-</span><span style="color:#ff3399;">></span>head<span style="color:#ff3399;">=</span><span style="color:#ff3399;">=</span>NULL) <span style="color:#ff3399;">return</span> <span style="color:#c10aff;">1</span>;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#ff3399;">else</span> <span style="color:#ff3399;">return</span> <span style="color:#c10aff;">0</span>;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">}</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"> </div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"><span style="color:#ff3399;">void</span> <span style="color:#ff3399;">delete</span>(LinkedListType <span style="color:#ff3399;">*</span>list, <span style="color:#4be6fa;">int</span> pos)</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">{</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#ff3399;">if</span>(<span style="color:#ff3399;">!</span>is_empty(list)&&(pos<span style="color:#ff3399;">></span><span style="color:#ff3399;">=</span><span style="color:#c10aff;">0</span>)&&(pos<span style="color:#ff3399;"><</span>list<span style="color:#ff3399;">-</span><span style="color:#ff3399;">></span>length)){</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">        ListNode <span style="color:#ff3399;">*</span>p<span style="color:#ff3399;">=</span>get_node_at(list, pos<span style="color:#ff3399;">-</span><span style="color:#c10aff;">1</span>);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">        remove_node(p,(p<span style="color:#ff3399;">!</span><span style="color:#ff3399;">=</span>NULL)?p<span style="color:#ff3399;">-</span><span style="color:#ff3399;">></span>rlink:NULL);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">        list<span style="color:#ff3399;">-</span><span style="color:#ff3399;">></span>length<span style="color:#ff3399;">-</span><span style="color:#ff3399;">-</span>;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    }</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">}</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"> </div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">element get_entry(LinkedListType <span style="color:#ff3399;">*</span>list, <span style="color:#4be6fa;">int</span> pos) <span style="color:#999999;">// 주어진 위치에 해당하는 데이터 반환 </span></div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">{</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    ListNode <span style="color:#ff3399;">*</span>p;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#ff3399;">if</span>(pos<span style="color:#ff3399;">></span><span style="color:#ff3399;">=</span>list<span style="color:#ff3399;">-</span><span style="color:#ff3399;">></span>length) error(<span style="color:#ffd500;">"Pos ERROR!"</span>);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    p<span style="color:#ff3399;">=</span>get_node_at(list, pos);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#ff3399;">return</span> p<span style="color:#ff3399;">-</span><span style="color:#ff3399;">></span>data;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">}</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"> </div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"><span style="color:#ff3399;">void</span> clear(LinkedListType <span style="color:#ff3399;">*</span>list) <span style="color:#999999;">// 모든 노드를 삭제 </span></div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">{</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#4be6fa;">int</span> i;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#ff3399;">for</span>(i<span style="color:#ff3399;">=</span><span style="color:#c10aff;">0</span>;i<span style="color:#ff3399;"><</span>list<span style="color:#ff3399;">-</span><span style="color:#ff3399;">></span>length;i<span style="color:#ff3399;">+</span><span style="color:#ff3399;">+</span>)</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">        <span style="color:#ff3399;">delete</span>(list, i);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">}</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"> </div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"><span style="color:#ff3399;">void</span> display(LinkedListType <span style="color:#ff3399;">*</span>buffer) <span style="color:#999999;">// buffer의 내용 출력 </span></div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">{</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#4be6fa;">int</span> i;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    ListNode <span style="color:#ff3399;">*</span>tmp_node;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    tmp_node<span style="color:#ff3399;">=</span>buffer<span style="color:#ff3399;">-</span><span style="color:#ff3399;">></span>head;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    </div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#4be6fa;">printf</span>(<span style="color:#ffd500;">"********************\n"</span>);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#ff3399;">for</span>(i<span style="color:#ff3399;">=</span><span style="color:#c10aff;">0</span>;i<span style="color:#ff3399;"><</span>buffer<span style="color:#ff3399;">-</span><span style="color:#ff3399;">></span>length;i<span style="color:#ff3399;">+</span><span style="color:#ff3399;">+</span>){</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">        <span style="color:#4be6fa;">printf</span>(<span style="color:#ffd500;">"%s"</span>, tmp_node<span style="color:#ff3399;">-</span><span style="color:#ff3399;">></span>data.a);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">        tmp_node<span style="color:#ff3399;">=</span>tmp_node<span style="color:#ff3399;">-</span><span style="color:#ff3399;">></span>rlink;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    }</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#4be6fa;">printf</span>(<span style="color:#ffd500;">"********************\n"</span>);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">}</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"> </div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"><span style="color:#ff3399;">void</span> warning(<span style="color:#4be6fa;">char</span> <span style="color:#ff3399;">*</span>message) <span style="color:#999999;">// 경고 메세지 출력</span></div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">{</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    fprintf(stderr, <span style="color:#ffd500;">"%s\n"</span>, message);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">}</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"> </div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"><span style="color:#ff3399;">void</span> error(<span style="color:#4be6fa;">char</span> <span style="color:#ff3399;">*</span>message) <span style="color:#999999;">// 에러 메세지 출력</span></div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">{</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    fprintf(stderr, <span style="color:#ffd500;">"%s\n"</span>, message);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    exit(<span style="color:#c10aff;">1</span>);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">}</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"> </div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"><span style="color:#ff3399;">void</span> help() <span style="color:#999999;">// 메뉴 출력</span></div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">{</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#4be6fa;">printf</span>(<span style="color:#ffd500;">"********************\n"</span>);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#4be6fa;">printf</span>(<span style="color:#ffd500;">"i: INSERT\n"</span>);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#4be6fa;">printf</span>(<span style="color:#ffd500;">"d: DELETE\n"</span>);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#4be6fa;">printf</span>(<span style="color:#ffd500;">"r: READ FILE\n"</span>);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#4be6fa;">printf</span>(<span style="color:#ffd500;">"w: WRITE FILE\n"</span>);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#4be6fa;">printf</span>(<span style="color:#ffd500;">"q: QUIT\n"</span>);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#4be6fa;">printf</span>(<span style="color:#ffd500;">"********************\n"</span>);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">}</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"> </div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"><span style="color:#ff3399;">void</span> read_file(LinkedListType <span style="color:#ff3399;">*</span>buffer) <span style="color:#999999;">// disk file로부터 data를 읽음</span></div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">{</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#4be6fa;">char</span> fname[MAX_NAME];</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    FILE <span style="color:#ff3399;">*</span>fd;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    element p;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    </div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#ff3399;">if</span>(<span style="color:#ff3399;">!</span>is_empty(buffer)){</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">        clear(buffer);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    }</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    init(buffer);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    </div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#4be6fa;">printf</span>(<span style="color:#ffd500;">"FILE NAME: "</span>);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#4be6fa;">scanf</span>(<span style="color:#ffd500;">"%s"</span>, fname);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#ff3399;">if</span>((fd<span style="color:#ff3399;">=</span>fopen(fname,<span style="color:#ffd500;">"r"</span>))<span style="color:#ff3399;">=</span><span style="color:#ff3399;">=</span>NULL){</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">        warning(<span style="color:#ffd500;">"Can't open file.\n"</span>);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">        <span style="color:#ff3399;">return</span>;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    }</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#ff3399;">while</span>(fgets(p.a, MAX_CHAR_PER_LINE, fd)){</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">        add_last(buffer, p);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    }</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    fclose(fd);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    display(buffer);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">}</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"> </div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"><span style="color:#ff3399;">void</span> write_file(LinkedListType <span style="color:#ff3399;">*</span>buffer) <span style="color:#999999;">// buffer에 있는 data를 disk file에 씀</span></div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">{</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    FILE <span style="color:#ff3399;">*</span>fd;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#4be6fa;">char</span> fname[MAX_NAME];</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    element p;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#4be6fa;">int</span> i;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    </div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#4be6fa;">printf</span>(<span style="color:#ffd500;">"FILE NAME: "</span>);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#4be6fa;">scanf</span>(<span style="color:#ffd500;">"%s"</span>, fname);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#ff3399;">if</span>((fd<span style="color:#ff3399;">=</span>fopen(fname, <span style="color:#ffd500;">"w"</span>))<span style="color:#ff3399;">=</span><span style="color:#ff3399;">=</span>NULL){</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">        <span style="color:#4be6fa;">printf</span>(<span style="color:#ffd500;">"Can't open file.\n"</span>);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">        <span style="color:#ff3399;">return</span>;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    }</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#ff3399;">for</span>(i<span style="color:#ff3399;">=</span><span style="color:#c10aff;">0</span>;i<span style="color:#ff3399;"><</span>get_length(buffer);i<span style="color:#ff3399;">+</span><span style="color:#ff3399;">+</span>){</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">        p<span style="color:#ff3399;">=</span>get_entry(buffer, i);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">        fputs(p.a, fd);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    }</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    fclose(fd);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    display(buffer);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">}</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"> </div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"><span style="color:#ff3399;">void</span> delete_line(LinkedListType <span style="color:#ff3399;">*</span>buffer) <span style="color:#999999;">// 하나의 라인 삭제 </span></div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">{</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#4be6fa;">int</span> position;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    </div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#ff3399;">if</span>(is_empty(buffer))</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">        <span style="color:#4be6fa;">printf</span>(<span style="color:#ffd500;">"Line is already empty!\n"</span>);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#ff3399;">else</span></div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    {</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">        <span style="color:#4be6fa;">printf</span>(<span style="color:#ffd500;">"Input line number: "</span>);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">        <span style="color:#4be6fa;">scanf</span>(<span style="color:#ffd500;">"%d"</span>,&position);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">        <span style="color:#ff3399;">delete</span>(buffer, position);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    }</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    display(buffer);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">}</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"> </div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"><span style="color:#ff3399;">void</span> insert_line(LinkedListType <span style="color:#ff3399;">*</span>buffer) <span style="color:#999999;">// 하나의 라인 삽입</span></div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">{</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#4be6fa;">int</span> position;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#4be6fa;">char</span> line[MAX_CHAR_PER_LINE];</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    element p;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    </div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#4be6fa;">printf</span>(<span style="color:#ffd500;">"Input line number: "</span>);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#4be6fa;">scanf</span>(<span style="color:#ffd500;">"%d"</span>, &position);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    </div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#4be6fa;">printf</span>(<span style="color:#ffd500;">"Input: "</span>);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    fflush(stdin);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    fgets(line, MAX_CHAR_PER_LINE, stdin);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    strcpy(p.a, line);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    add(buffer, position, p);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    display(buffer);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">}</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"> </div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"><span style="color:#ff3399;">void</span> do_command(LinkedListType <span style="color:#ff3399;">*</span>buffer, <span style="color:#4be6fa;">char</span> command) <span style="color:#999999;">// 커맨드 창 출력</span></div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">{</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#ff3399;">switch</span>(command)</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    {</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">        <span style="color:#ff3399;">case</span> <span style="color:#ffd500;">'d'</span>:</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">            delete_line(buffer);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">            <span style="color:#ff3399;">break</span>;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">        <span style="color:#ff3399;">case</span> <span style="color:#ffd500;">'i'</span>:</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">            insert_line(buffer);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">            <span style="color:#ff3399;">break</span>;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">        <span style="color:#ff3399;">case</span> <span style="color:#ffd500;">'r'</span>:</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">            read_file(buffer);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">            <span style="color:#ff3399;">break</span>;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">        <span style="color:#ff3399;">case</span> <span style="color:#ffd500;">'w'</span>:</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">            write_file(buffer);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">            <span style="color:#ff3399;">break</span>;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">        <span style="color:#ff3399;">case</span> <span style="color:#ffd500;">'q'</span>:</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">            <span style="color:#ff3399;">break</span>;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    }</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">}</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"> </div> <div style="padding:0px 6px;white-space:pre;line-height:130%;"><span style="color:#4be6fa;">int</span> main()</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">{</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#4be6fa;">char</span> command;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    LinkedListType buffer;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    </div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    init(&buffer);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#ff3399;">do</span>{</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">        help();</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">        command<span style="color:#ff3399;">=</span>getchar();</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">        do_command(&buffer, command);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">        fflush(stdin);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    } <span style="color:#ff3399;">while</span>(command<span style="color:#ff3399;">!</span><span style="color:#ff3399;">=</span><span style="color:#ffd500;">'q'</span>);</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    </div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">    <span style="color:#ff3399;">return</span> <span style="color:#c10aff;">0</span>;</div> <div style="padding:0px 6px;white-space:pre;line-height:130%;">}</div></div> <div style="text-align:right;margin-top:-13px;margin-right:5px;font-size:9px;font-style:italic;"><a target="_blank" href="http://colorscripter.com/info#e" target="_blank" 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