CLHEP 2.0.4.7 Reference Documentation
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00001 // -*- C++ -*- 00002 // $Id: FunctionSum.cc,v 1.3 2003/09/06 14:04:14 boudreau Exp $ 00003 #include "CLHEP/GenericFunctions/FunctionSum.hh" 00004 #include <assert.h> 00005 00006 namespace Genfun { 00007 FUNCTION_OBJECT_IMP(FunctionSum) 00008 00009 FunctionSum::FunctionSum(const AbsFunction *arg1, const AbsFunction *arg2): 00010 _arg1(arg1->clone()), 00011 _arg2(arg2->clone()) 00012 { 00013 if (arg1->dimensionality()!=arg2->dimensionality()) { 00014 std::cout 00015 << "Warning: dimension mismatch in function sum" 00016 << std::endl; 00017 assert(0); 00018 } 00019 } 00020 00021 FunctionSum::FunctionSum(const FunctionSum & right) : 00022 _arg1(right._arg1->clone()), 00023 _arg2(right._arg2->clone()) 00024 {} 00025 00026 unsigned int FunctionSum::dimensionality() const { 00027 return _arg1->dimensionality(); 00028 } 00029 00030 FunctionSum::~FunctionSum() 00031 { 00032 delete _arg1; 00033 delete _arg2; 00034 } 00035 00036 00037 00038 double FunctionSum::operator ()(double x) const 00039 { 00040 return (*_arg1)(x)+(*_arg2)(x); 00041 } 00042 00043 00044 double FunctionSum::operator ()(const Argument & x) const 00045 { 00046 return (*_arg1)(x)+(*_arg2)(x); 00047 } 00048 00049 00050 00051 Derivative FunctionSum::partial(unsigned int index) const { 00052 const AbsFunction & fPrime = _arg1->partial(index) + _arg2->partial(index); 00053 return Derivative(&fPrime); 00054 } 00055 00056 00057 00058 } // namespace Genfun