MADARA  3.1.8
SystemCallSqrt.h
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1 /* -*- C++ -*- */
2 #ifndef _MADARA_SYSTEM_CALL_SQRT_H_
3 #define _MADARA_SYSTEM_CALL_SQRT_H_
4 
5 #ifndef _MADARA_NO_KARL_
6 
7 #include <string>
8 #include <stdexcept>
11 
12 
13 namespace madara
14 {
15  namespace expression
16  {
17  // Forward declaration.
18  class Visitor;
19 
25  {
26  public:
32  const ComponentNodes & nodes);
33 
37  virtual ~SystemCallSqrt (void);
38 
43  virtual madara::knowledge::KnowledgeRecord item (void) const;
44 
50  virtual madara::knowledge::KnowledgeRecord prune (bool & can_change);
51 
58 
63  virtual void accept (Visitor &visitor) const;
64  };
65  }
66 }
67 
68 #endif // _MADARA_NO_KARL_
69 
70 #endif /* _MADARA_SYSTEM_CALL_SQRT_H_ */
This class encapsulates an entry in a KnowledgeBase.
virtual madara::knowledge::KnowledgeRecord prune(bool &can_change)
Prunes the expression tree of unnecessary nodes.
std::deque< ComponentNode * > ComponentNodes
a vector of Component Nodes
virtual ~SystemCallSqrt(void)
Destructor.
This class stores variables and their values for use by any entity needing state information in a thr...
SystemCallSqrt(madara::knowledge::ThreadSafeContext &context, const ComponentNodes &nodes)
Constructor.
virtual void accept(Visitor &visitor) const
Accepts a visitor subclassed from the Visitor class.
Returns the square root of a term.
Abstract base class for all visitors to all classes that derive from ComponentNode.
Definition: Visitor.h:90
virtual madara::knowledge::KnowledgeRecord item(void) const
Returns the value of the node.
Interface for a MADARA system call.
Settings for applying knowledge updates.
Copyright (c) 2015 Carnegie Mellon University.
virtual madara::knowledge::KnowledgeRecord evaluate(const madara::knowledge::KnowledgeUpdateSettings &settings)
Evaluates the expression tree.