rpndupn Class Reference

#include <rpnfunc.h>

Inheritance diagram for rpndupn:

Collaboration diagram for rpndupn:

List of all members.

Public Member Functions
	rpndupn ()
	rpndupn (deque< rpnbase * > &ds, bool const evaluate=true)
	~rpndupn ()
rpnbase *	copy () const
void	visit (deque< rpnbase * > &ds, rpninteger &n)
string const	name () const
void	eval (deque< rpnbase * > &ds)

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Detailed Description

Definition at line 172 of file rpnfunc.h.

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Constructor & Destructor Documentation

rpndupn::rpndupn

(

)

[inline]

Definition at line 176 of file rpnfunc.h.

Referenced by copy().

{}

rpndupn::rpndupn	(	deque< rpnbase * > &	ds,
		bool const	evaluate = true
	)

Definition at line 394 of file rpnfunc.cpp.

References eval().

{
  if (evaluate)
    eval(ds);
  else
    ds.push_front(this);
}

rpndupn::~rpndupn

(

)

[inline]

Definition at line 178 of file rpnfunc.h.

{}

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Member Function Documentation

rpnbase * rpndupn::copy

(

)

const [virtual]

Reimplemented from rpnfunction.

Definition at line 402 of file rpnfunc.cpp.

References rpndupn().

{
  return new rpndupn(); 
}

void rpndupn::eval

(

deque< rpnbase * > &

ds

)

[virtual]

Reimplemented from rpnfunction.

Definition at line 407 of file rpnfunc.cpp.

References rpnbase::accept(), and rpnbase::dec().

Referenced by rpndupn().

{
  if (!ds.empty())
    ds[0]->accept(ds,*this);

  dec();
}

string const rpndupn::name

(

)

const [inline, virtual]

Reimplemented from rpnfunction.

Definition at line 183 of file rpnfunc.h.

{ return string("dupn"); }

void rpndupn::visit	(	deque< rpnbase * > &	ds,
		rpninteger &	n
	)			[virtual]

Reimplemented from rpnfunction.

Definition at line 415 of file rpnfunc.cpp.

References rpnbase::dec(), and rpninteger::num.

{
  rpnbase* x0 = ds.front();
  ds.pop_front();

  unsigned int const k(n.num);
  x0->dec();

  if (n.num<=0)
    return;

  if (ds.size()<k)
    return;

  for (unsigned int i=0; i<k; ++i)
    ds.push_front( ds[k-1]->copy() );

}

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The documentation for this class was generated from the following files:

• rpn/rpnfunc.h
• rpn/rpnfunc.cpp