Initial commit

c++/Others/A generic stack that includes exception handling..cpp

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