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ExpressionUnaryOperator.h
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1 #ifndef CommonTools_Utils_ExpressionUnaryOperator_h
2 #define CommonTools_Utils_ExpressionUnaryOperator_h
3 /* \class reco::parser::ExpressionUnaryOperator
4  *
5  * Unary Operator expression
6  *
7  * \author original version: Chris Jones, Cornell,
8  * adapted by Luca Lista, INFN
9  *
10  * \version $Revision: 1.2 $
11  *
12  */
15 
16 namespace reco {
17  namespace parser {
18  template<typename Op>
20  virtual double value(const edm::ObjectWithDict& o) const {
21  return op_((*exp_).value(o));
22  }
24  exp_ = expStack.back(); expStack.pop_back();
25  }
26  private:
27  Op op_;
29  };
30  }
31 }
32 
33 #endif
boost::shared_ptr< ExpressionBase > ExpressionPtr
std::vector< boost::shared_ptr< ExpressionBase > > ExpressionStack
ExpressionUnaryOperator(ExpressionStack &expStack)
virtual double value(const edm::ObjectWithDict &o) const