varexists Class Reference

#include <rpnfunc.h>

Inheritance diagram for varexists:

Collaboration diagram for varexists:

List of all members.

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

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Detailed Description

Definition at line 601 of file rpnfunc.h.

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Constructor & Destructor Documentation

varexists::varexists

(

)

[inline]

Definition at line 605 of file rpnfunc.h.

Referenced by copy().

{}

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

Definition at line 1586 of file rpnfunc.cpp.

References eval().

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

varexists::~varexists

(

)

[inline]

Definition at line 607 of file rpnfunc.h.

{}

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Member Function Documentation

rpnbase * varexists::copy

(

)

const [virtual]

Reimplemented from rpnfunction.

Definition at line 1594 of file rpnfunc.cpp.

References varexists().

{
  return new varexists();
}

void varexists::eval

(

deque< rpnbase * > &

ds

)

[virtual]

Reimplemented from rpnfunction.

Definition at line 1599 of file rpnfunc.cpp.

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

Referenced by varexists().

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

  dec();
}

string const varexists::name

(

)

const [inline, virtual]

Reimplemented from rpnfunction.

Definition at line 612 of file rpnfunc.h.

{ return string("isvar"); }

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

Reimplemented from rpnfunction.

Definition at line 1607 of file rpnfunc.cpp.

References rpnstring::str.

{
  bool res;
  rpnprogramstackstate().exists(res,s.str);
  new rpninteger(ds,res);
}

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

• rpn/rpnfunc.h
• rpn/rpnfunc.cpp