小编Sou*_*paw的帖子

我试着找到答案,但没有看到我的特定问题.我正在使用三元搜索树的共享指针(用于预测文本算法),并使用共享指针遇到一些问题.

我已经离开C++ 5年了,让我告诉你,Java并没有帮助你学习指针.我不得不重新学习在过去几天里我在学校学到的指针材料,并成功设法破坏了我的代码.

这是我的大部分代码:

// TernarySearchTree.cc

#include "stdafx.h"
#include "ternary_search_tree.h"

//Constructor
TernarySearchTree::TernarySearchTree() {
  num_nodes_ = 0;
  size_in_memory_ = 0;
  root_node_ = nullptr;
}

TernarySearchTree::TernarySearchTree(const TernarySearchTree& other) {
  num_nodes_ = other.num_nodes_;
  size_in_memory_ = other.size_in_memory_;

  TernarySearchTreeNode node;
  node = *other.root_node_;
  root_node_.reset(&node);
}

//Destructor
TernarySearchTree::~TernarySearchTree() {

}

//operators
TernarySearchTree& TernarySearchTree::operator=(const TernarySearchTree& other) {

  //TODO: swap idiom - create a copy of the node then swap the new one with it
  //do this first to provide exception safety
  TernarySearchTreeNode node;
  node = *other.root_node_;

  root_node_.reset(&node); …