rpnbitshiftleft Class Reference

#include <rpnfunc.h>

Inheritance diagram for rpnbitshiftleft:

Collaboration diagram for rpnbitshiftleft:

List of all members.

Public Member Functions
	rpnbitshiftleft ()
	rpnbitshiftleft (deque< rpnbase * > &ds, bool const evaluate=true)
	~rpnbitshiftleft ()
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 1288 of file rpnfunc.h.

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Constructor & Destructor Documentation

rpnbitshiftleft::rpnbitshiftleft

(

)

[inline]

Definition at line 1292 of file rpnfunc.h.

Referenced by copy().

{}

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

Definition at line 4001 of file rpnfunc.cpp.

References eval().

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

rpnbitshiftleft::~rpnbitshiftleft

(

)

[inline]

Definition at line 1294 of file rpnfunc.h.

{}

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Member Function Documentation

rpnbase * rpnbitshiftleft::copy

(

)

const [virtual]

Reimplemented from rpnfunction.

Definition at line 4009 of file rpnfunc.cpp.

References rpnbitshiftleft().

{
  return new rpnbitshiftleft();
}

void rpnbitshiftleft::eval

(

deque< rpnbase * > &

ds

)

[virtual]

Reimplemented from rpnfunction.

Definition at line 4014 of file rpnfunc.cpp.

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

Referenced by rpnbitshiftleft().

{
  if (ds.size()>1)
    ds[0]->accept(ds,*this);

  dec();
}

string const rpnbitshiftleft::name

(

)

const [inline, virtual]

Reimplemented from rpnfunction.

Definition at line 1299 of file rpnfunc.h.

{ return string("shl"); }

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

Reimplemented from rpnfunction.

Definition at line 4022 of file rpnfunc.cpp.

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

{
  rpnbase* x0 = ds.front();
  rpnbase* x1 = ds[1];

  if (!x1->isinteger())
    return;

  ds.pop_front();

  ((rpninteger*)x1)->num = (((rpninteger*)x1)->num << n.num);
  
  x0->dec();
}

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

• rpn/rpnfunc.h
• rpn/rpnfunc.cpp