rpnerase Class Reference

#include <rpnfunc.h>

Inheritance diagram for rpnerase:

Collaboration diagram for rpnerase:

List of all members.

Public Member Functions
	rpnerase ()
	rpnerase (deque< rpnbase * > &ds, bool const evaluate=true)
	~rpnerase ()
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 1082 of file rpnfunc.h.

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Constructor & Destructor Documentation

rpnerase::rpnerase

(

)

[inline]

Definition at line 1086 of file rpnfunc.h.

Referenced by copy().

{}

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

Definition at line 3384 of file rpnfunc.cpp.

References eval().

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

rpnerase::~rpnerase

(

)

[inline]

Definition at line 1088 of file rpnfunc.h.

{}

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Member Function Documentation

rpnbase * rpnerase::copy

(

)

const [virtual]

Reimplemented from rpnfunction.

Definition at line 3392 of file rpnfunc.cpp.

References rpnerase().

{
  return new rpnerase(); 
}

void rpnerase::eval

(

deque< rpnbase * > &

ds

)

[virtual]

Reimplemented from rpnfunction.

Definition at line 3397 of file rpnfunc.cpp.

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

Referenced by rpnerase().

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

  dec();
}

string const rpnerase::name

(

)

const [inline, virtual]

Reimplemented from rpnfunction.

Definition at line 1093 of file rpnfunc.h.

{ return string("delete"); }

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

Reimplemented from rpnfunction.

Definition at line 3405 of file rpnfunc.cpp.

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

{
  if (ds.size()<2)
    return;

  if (n.num<0)
    return;

  unsigned int k = (unsigned int)(n.num);

  if (k+1>=ds.size())
    return;

  rpnbase* x0 = ds.front();
  ds.pop_front();
 
  deque<rpnbase*>::iterator i = ds.begin()+k;
  (*i)->dec();
  ds.erase(i);

  x0->dec();
}

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

• rpn/rpnfunc.h
• rpn/rpnfunc.cpp