87 lines
1.8 KiB
C++
87 lines
1.8 KiB
C++
A generic stack that includes exception handling.
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#include <iostream>
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using namespace std;
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#define SIZE 10
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template <class StackType> class stack {
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StackType stck[SIZE];
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int topOfStack;
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public:
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void init() {
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topOfStack = 0;
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}
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void push(StackType ch);
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StackType pop();
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};
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template <class StackType>
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void stack<StackType>::push(StackType ob)
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{
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try {
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if(topOfStack==SIZE) throw SIZE;
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} catch(int) {
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cout << "Stack is full.\n";
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return;
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}
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stck[topOfStack] = ob;
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topOfStack++;
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}
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template <class StackType>
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StackType stack<StackType>::pop()
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{
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try {
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if( topOfStack == 0)
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throw 0;
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} catch(int) {
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cout << "Stack is empty.\n";
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return 0;
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}
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topOfStack--;
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return stck[topOfStack];
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}
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int main()
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{
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stack<char> stack1, stack2;
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int i;
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stack1.init();
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stack2.init();
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stack1.push('a');
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stack2.push('x');
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stack1.push('b');
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stack2.push('y');
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stack1.push('c');
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stack2.push('z');
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for(i = 0; i <3; i++)
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cout << "Pop stack1: " << stack1.pop() << endl;
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for(i = 0; i <4; i++)
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cout << "Pop stack2: " << stack2.pop() << endl;
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// demonstrate double stacks
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stack<double> doubleValueStack1, doubleValueStack2; // create two stacks
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// initialize the stacks
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doubleValueStack1.init();
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doubleValueStack2.init();
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doubleValueStack1.push(1.1);
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doubleValueStack2.push(2.2);
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doubleValueStack1.push(3.3);
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doubleValueStack2.push(4.4);
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doubleValueStack1.push(5.5);
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doubleValueStack2.push(6.6);
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for(i = 0; i <3; i++)
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cout << "Pop doubleValueStack1: " << doubleValueStack1.pop() << endl;
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for(i = 0; i <4; i++)
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cout << "Pop doubleValueStack2: " << doubleValueStack2.pop() << endl;
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return 0;
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}
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