Gabriele Cosmo
38 lines
1.8 KiB
C++
38 lines
1.8 KiB
C++
//
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// ********************************************************************
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// * DISCLAIMER *
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// * *
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// * The following disclaimer summarizes all the specific disclaimers *
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// * of contributors to this software. The specific disclaimers,which *
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// * govern, are listed with their locations in: *
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// * http://cern.ch/geant4/license *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. *
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// * *
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// * This code implementation is the intellectual property of the *
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// * GEANT4 collaboration. *
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// * By copying, distributing or modifying the Program (or any work *
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// * based on the Program) you indicate your acceptance of this *
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// * statement, and all its terms. *
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// ********************************************************************
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//
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#ifndef CompileTimeConstraints_hh
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#define CompileTimeConstraints_hh
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namespace CompileTimeConstraints
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{
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template <class Base> char InheritsFrom(Base *);
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template <class Derived> Derived* DerivedPointer();
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template < class A, class B > struct IsA
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{
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public:
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enum { ok=(sizeof(InheritsFrom<B>(DerivedPointer<A>())) ) };
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};
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}
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#endif
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