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/data/refman/pasoursint/CMSSW_5_3_10/src/PhysicsTools/Utilities/interface/Numerical.h

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00001 #ifndef PhysicsTools_Utilities_Numerical_h
00002 #define PhysicsTools_Utilities_Numerical_h
00003 #include <cassert>
00004 namespace funct {
00005 
00006   template<int n> struct Numerical {
00007     Numerical() { }
00008     Numerical(int m) { assert(m == n); }
00009     static const int value = n;
00010     double operator()() const { return n; }
00011     operator double() const { return n; }
00012     double operator()(double) const { return n; }
00013     double operator()(double, double) const { return n; }
00014   };
00015 
00016   template<int n> const Numerical<n>& num()
00017   { static Numerical<n> c; return c; }
00018 
00019 }
00020 
00021 #endif