Public Member Functions | Public Attributes | Private Attributes

ACE_Fixed_Stack< T, ACE_SIZE > Class Template Reference

Implement a generic LIFO abstract data type. More...

#include <Containers_T.h>

Collaboration diagram for ACE_Fixed_Stack< T, ACE_SIZE >:
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List of all members.

Public Member Functions

 ACE_Fixed_Stack (void)
 Initialize a new stack so that it is empty.
 ACE_Fixed_Stack (const ACE_Fixed_Stack< T, ACE_SIZE > &s)
 The copy constructor (performs initialization).
void operator= (const ACE_Fixed_Stack< T, ACE_SIZE > &s)
 Assignment operator (performs assignment).
 ~ACE_Fixed_Stack (void)
 Perform actions needed when stack goes out of scope.
int push (const T &new_item)
 Constant time placement of element on top of stack.
int pop (T &item)
 Constant time removal of top of stack.
int top (T &item) const
 Constant time examination of top of stack.
int is_empty (void) const
 Returns 1 if the container is empty, otherwise returns 0.
int is_full (void) const
 Returns 1 if the container is full, otherwise returns 0.
size_t size (void) const
 The number of items in the stack.
void dump (void) const
 Dump the state of an object.

Public Attributes

 ACE_ALLOC_HOOK_DECLARE
 Declare the dynamic allocation hooks.

Private Attributes

size_t size_
 Size of the allocated data.
size_t top_
 Keeps track of the current top of stack.
stack_ [ACE_SIZE]
 Holds the stack's contents.

Detailed Description

template<class T, size_t ACE_SIZE>
class ACE_Fixed_Stack< T, ACE_SIZE >

Implement a generic LIFO abstract data type.

This implementation of a Stack uses a fixed array with the size fixed at instantiation time.

Requirements and Performance Characteristics

Definition at line 209 of file Containers_T.h.


Constructor & Destructor Documentation

template<class T , size_t ACE_SIZE>
ACE_Fixed_Stack< T, ACE_SIZE >::ACE_Fixed_Stack ( void   ) 

Initialize a new stack so that it is empty.

Initialize an empty stack.

Definition at line 97 of file Containers_T.cpp.

  : size_ (ACE_SIZE),
    top_ (0)
{
  ACE_TRACE ("ACE_Fixed_Stack<T, ACE_SIZE>::ACE_Fixed_Stack");
}

template<class T , size_t ACE_SIZE>
ACE_Fixed_Stack< T, ACE_SIZE >::ACE_Fixed_Stack ( const ACE_Fixed_Stack< T, ACE_SIZE > &  s  ) 

The copy constructor (performs initialization).

Initialize the stack and copy the provided stack into the current stack.

Definition at line 105 of file Containers_T.cpp.

  : size_ (s.size_),
    top_ (s.top_)
{
  ACE_TRACE ("ACE_Fixed_Stack<T, ACE_SIZE>::ACE_Fixed_Stack");
  for (size_t i = 0; i < this->top_; i++)
    this->stack_[i] = s.stack_[i];
}

template<class T , size_t ACE_SIZE>
ACE_Fixed_Stack< T, ACE_SIZE >::~ACE_Fixed_Stack ( void   ) 

Perform actions needed when stack goes out of scope.

Destroy the stack.

Definition at line 129 of file Containers_T.cpp.

{
  ACE_TRACE ("ACE_Fixed_Stack<T, ACE_SIZE>::~ACE_Fixed_Stack");
}


Member Function Documentation

template<class T , size_t ACE_SIZE>
void ACE_Fixed_Stack< T, ACE_SIZE >::dump ( void   )  const

Dump the state of an object.

Definition at line 89 of file Containers_T.cpp.

{
#if defined (ACE_HAS_DUMP)
  ACE_TRACE ("ACE_Fixed_Stack<T, ACE_SIZE>::dump");
#endif /* ACE_HAS_DUMP */
}

template<class T , size_t ACE_SIZE>
int ACE_Fixed_Stack< T, ACE_SIZE >::is_empty ( void   )  const [inline]

Returns 1 if the container is empty, otherwise returns 0.

Performs constant time check to see if stack is empty.

Definition at line 69 of file Containers_T.inl.

{
  ACE_TRACE ("ACE_Fixed_Stack<T, ACE_SIZE>::is_empty");
  return this->top_ == 0;
}

template<class T , size_t ACE_SIZE>
int ACE_Fixed_Stack< T, ACE_SIZE >::is_full ( void   )  const [inline]

Returns 1 if the container is full, otherwise returns 0.

Performs constant time check to see if stack is full.

Definition at line 76 of file Containers_T.inl.

{
  ACE_TRACE ("ACE_Fixed_Stack<T, ACE_SIZE>::is_full");
  return this->top_ >= this->size_;
}

template<class T , size_t ACE_SIZE>
void ACE_Fixed_Stack< T, ACE_SIZE >::operator= ( const ACE_Fixed_Stack< T, ACE_SIZE > &  s  ) 

Assignment operator (performs assignment).

Perform a deep copy of the provided stack.

Definition at line 115 of file Containers_T.cpp.

{
  ACE_TRACE ("ACE_Fixed_Stack<T, ACE_SIZE>::operator=");

  if (&s != this)
    {
      this->top_ = s.top_;

      for (size_t i = 0; i < this->top_; i++)
        this->stack_[i] = s.stack_[i];
    }
}

template<class T , size_t ACE_SIZE>
int ACE_Fixed_Stack< T, ACE_SIZE >::pop ( T &  item  )  [inline]

Constant time removal of top of stack.

Remove and return the top stack item. Returns -1 if the stack is already empty, 0 if the stack is not already empty, and -1 if failure occurs.

Definition at line 96 of file Containers_T.inl.

{
  ACE_TRACE ("ACE_Fixed_Stack<T, ACE_SIZE>::pop");
  if (this->is_empty () == 0)
    {
      item = this->stack_[--this->top_];
      return 0;
    }
  else
    return -1;
}

template<class T , size_t ACE_SIZE>
int ACE_Fixed_Stack< T, ACE_SIZE >::push ( const T &  new_item  )  [inline]

Constant time placement of element on top of stack.

Place a new item on top of the stack. Returns -1 if the stack is already full, 0 if the stack is not already full, and -1 if failure occurs.

Definition at line 83 of file Containers_T.inl.

{
  ACE_TRACE ("ACE_Fixed_Stack<T, ACE_SIZE>::push");
  if (this->is_full () == 0)
    {
      this->stack_[this->top_++] = new_item;
      return 0;
    }
  else
    return -1;
}

template<class T , size_t ACE_SIZE>
size_t ACE_Fixed_Stack< T, ACE_SIZE >::size ( void   )  const [inline]

The number of items in the stack.

Constant time access to the current size of the stack.

Definition at line 122 of file Containers_T.inl.

{
  return this->size_;
}

template<class T , size_t ACE_SIZE>
int ACE_Fixed_Stack< T, ACE_SIZE >::top ( T &  item  )  const [inline]

Constant time examination of top of stack.

Return top stack item without removing it. Returns -1 if the stack is already empty, 0 if the stack is not already empty, and -1 if failure occurs.

Definition at line 109 of file Containers_T.inl.

{
  ACE_TRACE ("ACE_Fixed_Stack<T, ACE_SIZE>::top");
  if (this->is_empty () == 0)
    {
      item = this->stack_[this->top_ - 1];
      return 0;
    }
  else
    return -1;
}


Member Data Documentation

template<class T, size_t ACE_SIZE>
ACE_Fixed_Stack< T, ACE_SIZE >::ACE_ALLOC_HOOK_DECLARE

Declare the dynamic allocation hooks.

Definition at line 287 of file Containers_T.h.

template<class T, size_t ACE_SIZE>
size_t ACE_Fixed_Stack< T, ACE_SIZE >::size_ [private]

Size of the allocated data.

Definition at line 291 of file Containers_T.h.

template<class T, size_t ACE_SIZE>
T ACE_Fixed_Stack< T, ACE_SIZE >::stack_[ACE_SIZE] [private]

Holds the stack's contents.

Definition at line 297 of file Containers_T.h.

template<class T, size_t ACE_SIZE>
size_t ACE_Fixed_Stack< T, ACE_SIZE >::top_ [private]

Keeps track of the current top of stack.

Definition at line 294 of file Containers_T.h.


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