在高级版中,我感谢您为我查看此代码,因为它一直困扰着我一段时间,而我似乎无法找到问题。
每当我运行它时,它不会在控制台中抛出任何错误,而是抛出此错误:
Debug Assertion失败!
程序:[Filepath to .exe] 文件:minkernel \ crts \ ucrt \ src \ appcrt \ heap \ debug_heap.cpp 892行
表达式:is_block_type_valid(header-> _block_use)
我一直想弄明白,但它对我不起作用。我相信它与我传入的模板类型有关,因为每当我尝试初始化minHeap对象或尝试我的Push方法时它都会崩溃,我也认为这是一个问题。
再一次,非常感谢你们查看我的代码。
主:
#include "minHeap.h"
#include "Node.h"
#include <iostream>
using namespace std;
int main() {
Node<char> A = Node<char>(0, 'A');
Node<char> B = Node<char>(1, 'B');
Node<char> C = Node<char>(2, 'C');
Node<char> D = Node<char>(3, 'D');
minHeap<char> myHeap = minHeap<char>();
//Below doesn't work, something about subscript is not of integrap type
//myHeap.push(A.index, A.value);
//myHeap.push(B.index, B.value);
//myHeap.push(C.index, C.value);
//myHeap.push(D.index, D.value);
cout << A.index << endl;
myHeap.~minHeap();
return 0;
}
这是Node.h:
#pragma once
template<typename T>
class Node
{
public:
float index;
T value;
Node(float indx, T val);
~Node();
};
template<typename T>
inline Node<T>::Node(float indx, T val)
{
index = indx;
value = val;
}
template<typename T>
inline Node<T>::~Node()
{
}
最后,minHeap:
#pragma once
template<typename T>
class minHeap
{
private:
T* arr[100];
int arrSize = 0;
void heapifyUp(int indx);
void heapifyDown(int indx);
int getParent(int indx);
int childLeft(int indx);
int childRight(int indx);
int swap(int indxA, int indxB);
public:
minHeap();
~minHeap();
void push(int indx, T val);
void pop();
};
template<typename T>
inline minHeap<T>::minHeap()
{
}
template<typename T>
inline minHeap<T>::~minHeap()
{
delete[] arr;
}
template<typename T>
inline void minHeap<T>::heapifyUp(int indx)
{
if (indx <= 0) return;
int j = getParent(indx);
if (arr[indx] < arr[j]) {
int temp = arr[indx];
arr[indx] = arr[j];
arr[j] = temp;
}
heapifyUp(j);
}
template<typename T>
inline void minHeap<T>::heapifyDown(int indx)
{
int j;
//if no left child
if (childLeft(indx) > arrSize - 1) return;
//if no right child
if (childRight(indx) > arrSize - 1) j = childLeft(indx);
//No children
else j = (arr[childLeft(indx)] < arr[childRight(indx)]) ? (childLeft(indx)):(childRight(indx));
if (arr[indx] > arr[indx]) {
int temp = arr[indx];
arr[indx] = arr[j];
arr[j] = temp;
}
heapifyDown(j);
}
template<typename T>
inline int minHeap<T>::getParent(int indx)
{
return (indx - 1) / 2;
}
template<typename T>
inline int minHeap<T>::childLeft(int indx)
{
return 2 * i + 1;
}
template<typename T>
inline int minHeap<T>::childRight(int indx)
{
return 2 * i + 2;
}
template<typename T>
inline int minHeap<T>::swap(int indxA, int indxB)
{
int tempA = arr[indxA];
int tempB = arr[indxB];
arr[indxA] = tempB;
arr[indxB] = tempA;
return 0;
}
template<typename T>
inline void minHeap<T>::push(int indx, T val)
{
//Something with Array is broken. Fix it pupper
int tempVal = arr[indx];
arr[indx] = val;
arrSize += 1;
heapifyUp(arrSize - 1);
}
template<typename T>
inline void minHeap<T>::pop()
{
int temp = arr[0];
arr[0] = arr[arrSize - 1];
arr[arrSize - 1] = nullptr;
arrSize -= 1;
heapifyDown(0);
}
答案 0 :(得分:0)
你为什么打电话给myHeap.~minHeap();
?这导致myHeap
被销毁两次,第二次调用试图释放已经释放的内存。这可能会导致您看到的错误。
您可以更简洁地构建变量:
Node<char> A(0, 'A');
minHeap<char> myHeap;