User Documentation
RAVL, Recognition And Vision Library
Ravl - Logic - VarC

LiteralC::Name(void) const
LiteralC::IsVariable(void) const
LiteralC::IsGrounded(void) const
LiteralC::Unify(const LiteralC &,BindSetC &) const
LiteralC::Hash(void) const
LiteralC::IsEqual(const LiteralC &) const
LiteralC::operator ==(const LiteralC &) const
LiteralC::operator !=(const LiteralC &) const
LiteralC::Dump(ostream &)
LiteralC::Test(const StateC &,BindSetC &) const
LiteralC::Solutions(const StateC &,BindSetC &) const
LiteralC::SubLiterals(HSetC &) const
LiteralC::Substitute(const BindSetC &,LiteralC &) const
LiteralC::ReplaceVars(HashC &,LiteralC &) const
RCHandleC::operator =(const RCHandleC &)
RCHandleC::DeepCopy(UIntT) const
RCHandleC::operator ==(const RCHandleC &) const
RCHandleC::operator !=(const RCHandleC &) const
RCHandleC::Hash(void) const
RCHandleC::IsValid(void) const
RCHandleC::IsHandleType(const DT &) const
RCHandleC::CheckHandleType(const DT &) const
RCHandleC::References(void) const
RCHandleC::operator <<(ostream &,const RCHandleC &)
RCHandleC::operator >>(istream &,RCHandleC &)

include "Ravl/Logic/Var.hh"
User Level:Normal
In Scope:RavlLogicN

Parent Classes: Methods:
Default constructor.
Creates an invalid handle.

Construct an anonymous var.

#include "Ravl/Logic/Literal.hh"
StringC Name() const
Get the name of symbol.

bool IsVariable() const
Is this a variable ?

bool IsGrounded() const
Is this a simple expression with no variables ?

bool Unify(const LiteralC & val,BindSetC & bs) const
Unify this and 'val'.

UIntT Hash() const
Get hash value.

bool IsEqual(const LiteralC & oth) const
Is this equial to another LiteralC ?

bool operator ==(const LiteralC & oth) const
Equality test.

bool operator !=(const LiteralC & oth) const
Inequality test.

void Dump(ostream & out)
Dump info in human readable format to stream 'out'.

bool Test(const StateC & state,BindSetC & binds) const
Test if condition is true in 'state'.

LiteralIterC Solutions(const StateC & state,BindSetC & binds) const
Return iterator through possibile matches to this literal in 'state', if any.

void SubLiterals(HSetC<LiteralC> & lits) const
Get a set of all sub literals.

bool Substitute(const BindSetC & binds,LiteralC & result) const
Substitute variables in 'binds' for their bound values.
This builds a new literal with the substute values (if there are any). The new value is assigned to 'result'

Returns true if at least one substitution has been made, false if none.

bool ReplaceVars(HashC<LiteralC,LiteralC> & subs,LiteralC & result) const
Replace all vars in this literal with new ones.
The mapping between the replacements and the new values is returned in 'subs' If no new replacements where found, false is returned.

#include "Ravl/RefCounter.hh"
const RCHandleC<LiteralBodyC> & operator =(const RCHandleC<LiteralBodyC> & oth)
Assign handle.

RCHandleC<LiteralBodyC> DeepCopy(UIntT levels = ((UIntT))) const
Do a deep copy of the object.

bool operator ==(const RCHandleC<LiteralBodyC> & oth) const
Are handles to the same object ?

bool operator !=(const RCHandleC<LiteralBodyC> & oth) const
Are handles to different objects ?

UIntT Hash() const
Default hash function.
This hashes on the address of the body.

bool IsValid() const
Test if this is a valid handle.

void Invalidate()
Invalidate this handle.
Unattaches the body from the handle.

bool IsHandleType(const DT &) const
Is handle of given type ?

void CheckHandleType(const DT & dummy) const
Check handle type. Throw an expception if not.

UIntT References() const
Find the number of references to the body of this object.

ostream & operator <<(ostream & strm,const RCHandleC<LiteralBodyC> & obj)

istream & operator >>(istream & strm,RCHandleC<LiteralBodyC> & obj)

Maintainer:Charles Galambos, Documentation by CxxDoc: Tue Aug 13 09:59:02 2002