fixing some tab indenting

Author: xtaci

include/queue.h

@@ -31,11 +31,11 @@ namespace alg
 private:
 class QueueEmptyException: public std::exception
 {
-public:
-virtual const char * what() const throw()
-{
-return "Queue is empty.";
-}
+public:
+virtual const char * what() const throw()
+{
+return "Queue is empty.";
+}
 };
 
 private:

include/stack.h

@@ -32,20 +32,20 @@ class Stack
 private:
 class StackEmptyException: public std::exception
 {
-public:
-virtual const char * what() const throw()
-{
-return "stack is empty";
-}
+public:
+virtual const char * what() const throw()
+{
+return "stack is empty";
+}
 };
 
 class StackIndexOutOfBoundException: public std::exception
 {
-public:
-virtual const char * what() const throw()
-{
-return "Index out of bound.";
-}
+public:
+virtual const char * what() const throw()
+{
+return "Index out of bound.";
+}
 };
 
 uint32_t m_capacity;// the total capacity

src/queue_demo.cpp

@@ -6,7 +6,7 @@
 
 int main()
 {
-using namespace alg;
+using alg::Queue;
 const int MAXELEMENT = 20;
 Queue<int> Q(MAXELEMENT);
 int i;