[英]C++ Array Based Stack
一旦变满,我想将堆栈翻倍。 我试过调用拷贝构造函数,而当我调用它时,堆栈并不会一直压入单词。 代码在变满之前可以完美运行,但是一旦变满就是发生问题的地方。 我究竟做错了什么?
#include<iostream>
#include<fstream>
#include<string>
//#include "ArgumentManager.h"
#include "Stack.h"
using namespace std;
int main(int argc, char** argv){
//ArgumentManager am(argc, argv); //Instantiating parser for command line arguments
//ReAdInG tHe InPuT fIlE nAmE
//ifstream infile(am.get("A").c_str()); // file to read from, getting name from command line
//ofstream outfile(am.get("C").c_str()); // output file, getting name from command line
ifstream infile;
ofstream outfile;
arrayStack<string> firstStack(10);
arrayStack<string> secondStack(firstStack);
firstStack.stackInitialize();
infile.open("input.txt");
outfile.open("output.txt");
//iF tHe FiLe IsNt ReAd
if(!infile){
std::cout << "ErRor[Input file not Found] YoU hAd OnE jOb....ShAmE" << endl;
std::cout << "ExItInG PrOgRaM!!! GoOdByE" << endl;
return 0;
};
string tester; // to get the words
//READ FROM INFILE AND OUTPUT TO OUTFILE
while(infile >> tester){
for(int i = 0; i < tester.size(); ++i)
{ // CHECK IF A SPECIAL CHARACTER IS ON THE FILE
if(!((tester[i] >= 'a' && tester[i] <= 'z')||(tester[i] >= 'A' && tester[i]<= 'Z')))
{
tester[i] = '\0';
}
}
firstStack.push(tester);
};
while(!firstStack.stackIsEmpty())
{
string b = firstStack.top();
outfile << b << " ";
cout << b << " ";
if(firstStack.stackIsFull()){
secondStack.push(tester)
};
firstStack.pop();
}
infile.close();
outfile.close();
return 0;
}
我也尝试在push函数中调用复制构造函数,例如:
template <class Type>
void arrayStack<Type>::push(const Type& word){
if(topStack != maxStackSize){
list[topStack] = word; // adding a new word to the STACK
topStack++;
}
else
cout << "YOU KNOW YOU CAN'T ADD TO A FULL STACK............SHAME" << endl;
arrayStack<Type> newArrayStack(maxStackSize*2);
for(int i = 0; i < maxStackSize; i++){
newArrayStack.push(list[i]);
}
newArrayStack.push(word);
stackCopy(newArrayStack);
}
它也不起作用。
以下是堆栈模板
//ARRAY BASED STACK TEMPLATE #ifndef H_ArrayStack #define H_ArrayStack #include <iostream> using namespace std; template <class Type> class arrayStack{ private: int maxStackSize; // the maximum height of the STACK int topStack; // the top of the STACK void stackCopy(const arrayStack<Type>& newArrayStack); Type *list; // array based needs pointer to hold the stack element public: const arrayStack<Type>& operator=(const arrayStack<Type>&); void stackInitialize(){ topStack = 0;}; //Ensure the array stack is empty bool stackIsEmpty() const{return(topStack == 0);}; //check if stack is empty, is const so will not be messed with bool stackIsFull() const{return topStack == maxStackSize;}; // just like line 8 except check if it is full void push(const Type& word); // add a word to the array STACK void pop(); //remove a word from the array and increment the top Type top() const; //returns the top of the STACK arrayStack(int size); //the default constructor arrayStack(const arrayStack<Type>& newArrayStack); // the copy constructor which allows a new STACK ~arrayStack(){delete [] list;}; // it is an array so to ensure no memory leaks the stack must be deleted after use }; template <class Type> void arrayStack<Type>::push(const Type& word){ if(topStack != maxStackSize){ list[topStack] = word; // adding a new word to the STACK topStack++; } else{ cout << "YOU KNOW YOU CAN'T ADD TO A FULL STACK............SHAME" << endl; int size = maxStackSize; maxStackSize *= 2; Type *temp = new Type[maxStackSize]; // create temp and double the size of list for(int i = 0; i < size; i++){ // copy over all the values temp[i] = list[i]; } delete [] list; // delete the list list = temp; // point to the resized list list[topStack] = word; topStack++; } } template <class Type> void arrayStack<Type>::pop(){ if (!stackIsEmpty()){ topStack--; } } template <class Type> Type arrayStack<Type>::top() const{ if(topStack == 0){ return 0; } else return list[topStack - 1]; } template <class Type> arrayStack<Type>::arrayStack(int size){ maxStackSize = size; topStack = 0; list = new Type[maxStackSize]; } template <class Type> void arrayStack<Type>::stackCopy(const arrayStack<Type>& newArrayStack){ maxStackSize = newArrayStack.maxStackSize; topStack = newArrayStack.topStack; list = new Type[maxStackSize]; for(int j = 0; j < topStack; j++) list[j] = newArrayStack.list[j]; } template <class Type> arrayStack<Type>::arrayStack(const arrayStack<Type>& newArrayStack){ stackCopy(newArrayStack); } template <class Type> const arrayStack<Type>& arrayStack<Type>::operator=(const arrayStack<Type>& newArrayStack){ if(this != &newArrayStack) stackCopy(newArrayStack); return *this; } #endif
从:
arrayStack<Type> newArrayStack(maxStackSize*2);
for(int i = 0; i < maxStackSize; i++){
newArrayStack.push(list[i]);
}
newArrayStack.push(word);
stackCopy(newArrayStack);
至:
int size = maxStackSize;
maxStackSize *= 2;
Type *temp = new Type[maxStackSize]; // create temp and double the size of list
for(int i = 0; i < size; i++){ // copy over all the values
temp[i] = list[i];
}
delete [] list; // delete the list
list = temp; // point to the resized list
list[topStack] = word;
topStackk++;
在推送功能中尝试此操作,这将使堆栈的大小增加一倍。 就像评论中提到的人一样,您的复制构造函数和stackcopy函数中也有错误
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