Stack using Templates
Write a C++ Menu Driven Program for Stack using Templates. Here’s a Simple C++ Menu Driven Program for Stack using Templates in C++ Programming Language.
What are Templates in C++ ?
Templates are the foundation of generic programming, which involves writing code in a way that is independent of any particular type.
A template is a blueprint or formula for creating a generic class or a function. The library containers like iterators and algorithms are examples of generic programming and have been developed using template concept.
There is a single definition of each container, such as vector, but we can define many different kinds of vectors for example, vector <int> or vector <string>..
Function Template :
The general form of a template function definition is shown here:
template <class type> ret-type func-name(parameter list)
{
// body of function
}
Class Template :
Just as we can define function templates, we can also define class templates. The general form of a generic class declaration is shown here:
template <class type> class class-name
{
.
.
.
}
Below is the source code for C++ Menu Driven Program for Stack using Templates which is successfully compiled and run on Windows System to produce desired output as shown below :
SOURCE CODE : :
/* C++ Menu Driven Program for Stack using Templates */
#include<iostream>
using namespace std;
template<class T>
class Stack
{
public:
Stack(int MaxStackSize);
~Stack(){delete[] S;}
int IsEmpty()const{return top==-1;}
int IsFull()const{return top==MaxTop;}
T Peek()const;
void Push(T);
T Pop();
void Display();
private:
int top; //current top of stack
int MaxTop; //max val for top
T *S; //element array
};
template<class T>
Stack<T>::Stack(int MaxStackSize)
{
//stack constructor
MaxTop=MaxStackSize-1;
S=new T[MaxStackSize];
top=-1;
}
template<class T>
T Stack<T>::Peek()const
{
if(IsEmpty()) //top fails
return 0;
else
return S[top];
}
template<class T>
void Stack<T>::Push(T x)
{
if(IsFull())
cout<<"\nno memory()"; //add fails
else
{
S[++top]=x;
}
}
template<class T>
T Stack<T>::Pop()
{
T x;
if(IsEmpty())
{
cout<<"\nstack is empty\n";
return -1;
}
else
{
x=S[top--];
return x;
}
}
template<class T>
void Stack<T>::Display()
{
if(IsEmpty())
cout<<"\nout of bounds"; //delete fails
else
for(int i=top;i>=0;i--)
{
cout<<S[i]<<"\t";
}
}
void menu()
{
cout<<"\n1.Push\n 2.Pop\n 3.Peek\n 4.Display\n";
}
int main()
{
Stack<int>iobj(5);
int ch,x;
do
{
menu();
cout<<"\nenter the choice\n";
cin>>ch;
switch(ch)
{
case 1:
cout<<"\nenter x value to push into the stack\n";
cin>>x;
iobj.Push(x);
break;
case 2:
x=iobj.Pop();
if(x!=-1)
cout<<"\npoped value is \t"<<x<<endl;
break;
case 3:
x=iobj.Peek();
cout<<"\ntop most value is \t"<<x<<endl;
break;
case 4:
iobj.Display();
break;
}
}while(ch>=1&&ch<=4);
return 0;
}
OUTPUT : :
/* C++ Menu Driven Program for Stack using Templates */ 1.Push 2.Pop 3.Peek 4.Display enter the choice 1 enter x value to push into the stack 1 1.Push 2.Pop 3.Peek 4.Display enter the choice 1 enter x value to push into the stack 2 1.Push 2.Pop 3.Peek 4.Display enter the choice 1 enter x value to push into the stack 3 1.Push 2.Pop 3.Peek 4.Display enter the choice 1 enter x value to push into the stack 4 1.Push 2.Pop 3.Peek 4.Display enter the choice 1 enter x value to push into the stack 5 1.Push 2.Pop 3.Peek 4.Display enter the choice 3 top most value is 5 1.Push 2.Pop 3.Peek 4.Display enter the choice 4 5 4 3 2 1 1.Push 2.Pop 3.Peek 4.Display enter the choice 2 poped value is 5 1.Push 2.Pop 3.Peek 4.Display enter the choice 2 poped value is 4 1.Push 2.Pop 3.Peek 4.Display enter the choice 2 poped value is 3 1.Push 2.Pop 3.Peek 4.Display enter the choice 2 poped value is 2 1.Push 2.Pop 3.Peek 4.Display enter the choice 2 poped value is 1 1.Push 2.Pop 3.Peek 4.Display enter the choice 2 stack is empty 1.Push 2.Pop 3.Peek 4.Display enter the choice 4 out of bounds 1.Push 2.Pop 3.Peek 4.Display enter the choice 5 Process returned 0
Above is the source code and output for C++ Menu Driven Program for Stack using Templates which is successfully compiled and run on Windows System to produce desired output.
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