ival_func

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// Copyright (C) 2010, Guy Barrand. All rights reserved.
// See the file tools.license for terms.
 
#ifndef tools_ival_func
#define tools_ival_func
 
#include "value"
 
namespace tools {
 
class ival_func {
public:
  virtual ~ival_func() {}
public:
  virtual void* cast(const std::string&) const = 0;
public:
  virtual const std::string& name() const = 0;
  virtual size_t number_of_arguments() const = 0;
  typedef std::vector<value> args;
  virtual bool eval(const args&,value&,std::string&) = 0;
  virtual ival_func* copy() const = 0;
};
 
}
 
#endif