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stackType.h
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210 lines (127 loc) · 2.86 KB
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#pragma once
#include <iostream>
#include <assert.h>
#include "stackType.h"
using namespace std;
template <class Type>
class stackType
{
private:
int maxStackSize;
int stacktop;
Type* list;
public:
void initializeStack();
bool isEmptyStack();
bool isFullStack();
void destroyStack();
void push(const Type& newItem); void pop(Type& poppedItem);
void displaystack();
Type top();
stackType(int stackSize = 100);
~stackType();
const stackType<Type>& operator=(const stackType<Type>&);
stackType(const stackType<Type>& otherStack);
};
template<class Type>
void stackType<Type>::initializeStack()
{
stacktop = 0;
}
template<class Type> void stackType<Type> ::destroyStack()
{
stacktop = 0;
}
template<class Type>
bool stackType<Type>::isEmptyStack()
{
return(stacktop== 0);
}
template<class Type>
bool stackType<Type>::isFullStack()
{
return(stacktop == maxStackSize);
}
template<class Type>
stackType<Type> ::stackType(int stackSize)
{
if (stackSize <= 0)
{
cout << "The size of the array to hold the stack must "<< "be positive. " << endl;
cout << "Creating an array of size 100." << endl;
maxStackSize = 100;
}
else
maxStackSize =stackSize;
stacktop = 0;
list= new Type[maxStackSize];
}
template<class Type>
stackType<Type>::~stackType()
{
delete[] list;
}
template<class Type>
stackType<Type> ::stackType(const stackType<Type>& otherStack)
{
int j;
maxStackSize =otherStack.maxStackSize;
stacktop = otherStack.stacktop;
list= new Type[maxStackSize];
if (stacktop != 0)
for (j = 0; j < stacktop; j++)
list[j] = otherStack.list[j];
}
template<class Type>
const stackType<Type>& stackType<Type>::operator=(const stackType<Type>& otherStack)
{
int j;
if (this != &otherStack)
{
if (maxStackSize != otherStack.maxStackSize)
cout << "Cannot copy. The two stacks are of different sizes." << endl;
else
{
stacktop = otherStack.stacktop;
if (stacktop != 0)
for (j = 0; j < stacktop; j++)
list[j] = otherStack.list[j];
}
}
return *this;
}
template<class Type>
void stackType<Type> ::push(const Type& newItem)
{
if (!isFullStack())
{
list[stacktop] = newItem;
stacktop++;
}
else
cout << "Cannot add to a full stack." << endl;
}
template<class Type>
void stackType<Type>::pop(Type& poppedItem)
{
if (!isEmptyStack())
{
stacktop--;
poppedItem =list[stacktop];
}
else
cout << "Cannot remove from an empty stack." << endl;
}
template<class Type>
void stackType<Type>::displaystack()
{
int i;
for (i = 0; i < stacktop; i++)
cout << list[i] << " ";
cout << endl;
}
template <class Type>
Type stackType<Type>::top() {
assert(stacktop != 0);
return list[stacktop - 1];
}