错误：在同一存储位置上两次调用Delete
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我在C ++中编写了此函数，并将其作为更大程序的一部分：
Object Single_list<Object>::pop_front() {
//Single_node<Object> *tmp_front;
//Object hold;
if (empty()) {
throw underflow();
}
Single_node<Object> first_node = front();
Single_node<Object> *ptr = list_head;
list_head = list_head->next();
delete ptr;
return first_node.retrieve();
}
template <typename Object>
Single_node<Object>::Single_node( const Object &e, Single_node<Object> *n ):element( e ), next_node( n )
{
// empty constructor
}
template <typename Object>
Object Single_node<Object>::retrieve() const
{
return element;
}
template <typename Object>
Single_node<Object> *Single_node<Object>::next() const
{
return next_node;
}
没有找到相关结果
已邀请:
1 个回复
痴浪墨
Object Single_list<Object>::pop_front() { if (empty()) { throw underflow(); } Object result = front().retrieve(); Single_node<Object> *ptr = list_head; list_head = list_head->next(); delete ptr; return result; }