Question

我收到了错误

在抛出一个实例后终止调用＆＃39; std :: invalid_argument＆＃39; what（）：dataItem已经在树中止（核心）倾倒）

我已经尝试了一切，我无法想到任何可能解决这个问题我假设我已经存储了树，但我不知道，任何帮助将不胜感激下面是我的代码 - 我也使用bintree和binNode：

#include <iostream>
#include <string>
#include <ctype.h>
#include <fstream>
#include <stdlib.h>
#include "bintree.h"
#include "binnode.h"
using namespace std;

class mazePoint    
{
  private:
  int x;
  char pointType;

  public:

   void setPointMaze(char ch, int i)
   {
       pointType = ch;
       x = i;
   }

   bool operator == (const mazePoint &other) const
   {
      return(this->x == other.x);
   }
   bool operator < (const mazePoint &other) const
   {
      return(this->x < other.x);
   }
};

class mazeRow
{
   private:
   bintree<mazePoint> points;
   int y;

   public:

   void setMazeRow(int rowNumber)
   {
      y = rowNumber;
   }

   bool operator==(const mazeRow &other) const
   { 
      return(this->y < other.y);
   }

   bool operator<(const mazeRow &other) const
   {
      return(this->y < other.y);
   }

   void storePointMaze(char ch, int i)
   {
      mazePoint point;
      point.setPointMaze(ch,i);
      points.insert(point);
   }

   void incrementeRow()
   {
     y++;
   }
};

void loadMaze(bintree<mazeRow> &maze, const char *filein, int argc);
int main (int argc, char* argv[])
{
   unsigned int  start = 0;
   unsigned int  finish = 0;
   bintree<mazeRow> maze;
   string filein;
   loadMaze(maze, argv[1], argc); 
   return 0;
}

void loadMaze(bintree<mazeRow> &maze, const char *filein, int argc)
{

   if ( argc < 2) {
      cout << "Must supply 1 argument to this program";
      exit(0);
   } 
    mazeRow row;
   ifstream infile(filein);      

   char temp;
   unsigned int i = 0;

   if (infile.is_open() && infile.good()) {
        while (!infile.eof())
        {
            infile.get(temp);
            i++;
      row.storePointMaze(temp, i);
      if(temp == '\n') ./
      {         
         maze.insert(row);
         row.incrementeRow();
      }
         }

   }
   else {
      cout << "Failed to open file..";      
   }
   infile.close();
}

谢谢

Answer 1

错误消息表明引发的异常未在代码中捕获。当你试图插入一个其键已经存在的元素时，很可能会在binTree实现中引发这种情况？

您可以使用调试器在抛出异常的位置中断（在gdb catch throw中将是命令），然后您可以检查在这种情况下最终结束的原因。

在抛出'std :: invalid_argument'的实例后调用终止what（）：dataItem已经在树中止（核心转储）

1 个答案: