RWTStack< T, C > Class Template Reference

Maintains a stack of values. More...

#include <rw/tstack.h>

Public Member Functions
	RWTStack ()
	RWTStack (const C &rhs)
	RWTStack (const RWTStack &rhs)
	RWTStack (C &&rhs)
	RWTStack (RWTStack &&rhs)
void	clear ()
size_t	entries () const
bool	isEmpty () const
RWTStack &	operator= (const RWTStack &rhs)
RWTStack &	operator= (RWTStack &&rhs)
T	pop ()
void	push (const T &a)
void	push (T &&a)
void	swap (RWTStack< T, C > &rhs)
T	top () const

Detailed Description

template<class T, class C>
class RWTStack< T, C >

Class RWTStack maintains a stack of values. Not only can the type of object inserted onto the stack be parameterized, but also the implementation of the stack.

Parameter T represents the type of object in the stack, either a class or built-in type. Class T must have:

• well-defined copy semantics (T::T(const T&) or equivalent)
• well-defined assignment semantics (T::operator=(const T&) or equivalent)
• any other semantics required by class C.

Parameter C represents the class used for implementation. The class C must provide the following interface (or equivalent):

• void C::append(const T&)
• void C::clear()
• size_t C::entries() const
• T C::last()
• bool C::isEmpty() const
• T C::removeLast()
• a default constructor (C::C())
• a copy constructor (C::C(const C&))
• an assignment operator (C& C::operator=(const C&))

These methods must behave in a manner that is consistent with that of RWTValDlist for this class to function as intended.

Useful choices for C are RWTValDlist or RWTValOrderedVector. Singly- linked list classes, such as RWTValSlist, can also be used, but tend to be less efficient at removing the last item.

Synopsis

#include <rw/tstack.h>
RWTStack<T, C> stack;

Persistence

None

Example

#include <iostream>
#include <rw/tstack.h>
#include <rw/tvordvec.h>

int main()
{
    RWTStack<int, RWTValOrderedVector<int> > stack;

    stack.push(1);
    stack.push(5);
    stack.push(6);

    while (!stack.isEmpty()) {
        std::cout << stack.pop() << "\n";
    }

    return 0;
}

Program output:

6
5
1

Constructor & Destructor Documentation

template<class T, class C>

RWTStack< T, C >::RWTStack ( )

inline

Constructs a stack.

template<class T, class C>

RWTStack< T, C >::RWTStack ( const C &  rhs )

inlineexplicit

Constructs a stack from the container rhs.

template<class T, class C>

RWTStack< T, C >::RWTStack ( const RWTStack< T, C > &  rhs )

inline

Copy constructor. Constructs self as a copy of rhs.

template<class T, class C>

RWTStack< T, C >::RWTStack ( C &&  rhs )

inlineexplicit

Move constructor. Takes ownership of the data owned by rhs.

Condition:

This method is available only on platforms with rvalue reference support.

template<class T, class C>

RWTStack< T, C >::RWTStack ( RWTStack< T, C > &&  rhs )

inline

Move constructor. Takes ownership of the data owned by rhs.

Condition:

This method is available only on platforms with rvalue reference support.

Member Function Documentation

template<class T, class C>

void RWTStack< T, C >::clear ( void  )

inline

Calls C::clear() on the underlying container.

template<class T, class C>

size_t RWTStack< T, C >::entries ( void  ) const

inline

Returns the result of calling C::entries() on the underlying container.

template<class T, class C>

bool RWTStack< T, C >::isEmpty ( ) const

inline

Returns the result of calling C::isEmpty() on the underlying container.

template<class T, class C>

RWTStack& RWTStack< T, C >::operator= ( const RWTStack< T, C > &  rhs )

inline

Assignment operator. Sets self to a copy of rhs.

template<class T, class C>

RWTStack& RWTStack< T, C >::operator= ( RWTStack< T, C > &&  rhs )

inline

Move assignment. Takes ownership of the data owned by rhs.

Condition:

This method is available only on platforms with rvalue reference support.

template<class T, class C>

T RWTStack< T, C >::pop ( )

inline

Returns the result of calling C::removeLast() on the underlying container.

template<class T, class C>

void RWTStack< T, C >::push ( const T &  a )

inline

Calls C::append(a) on the underlying container.

template<class T, class C>

void RWTStack< T, C >::push ( T &&  a )

inline

Calls C::append(a) on the underlying container.

Condition:

This method is available only on platforms with rvalue reference support.

template<class T, class C>

void RWTStack< T, C >::swap ( RWTStack< T, C > &  rhs )

inline

Swaps the data owned by self with the data owned by rhs.

template<class T, class C>

T RWTStack< T, C >::top ( ) const

inline

Returns the result of calling C::last() on the underlying container.