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Teuchos_NullIteratorTraits.hpp
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00041 
00042 #ifndef TEUCHOS_NULL_ITERATOR_TRAITS_HPP
00043 #define TEUCHOS_NULL_ITERATOR_TRAITS_HPP
00044 
00045 
00046 #include "Teuchos_ConfigDefs.hpp"
00047 
00048 
00049 namespace Teuchos {
00050 
00051 
00052 
00061 template<typename Iter>
00062 class NullIteratorTraits {
00063 public:
00064   static Iter getNull()
00065   {
00066 #ifdef TEUCHOS_NO_ZERO_ITERATOR_CONVERSION
00067     return Iter();
00068 #else
00069     return Iter(0);
00070 #endif
00071   }
00072 };
00073 
00074 
00079 template<typename Iter>
00080 class NullIteratorTraits<std::reverse_iterator<Iter> > {
00081 public:
00082   static std::reverse_iterator<Iter> getNull()
00083     {
00084       return std::reverse_iterator<Iter>(
00085         NullIteratorTraits<Iter>::getNull()
00086         );
00087     }
00088 };
00089 
00090 
00091 } // namespace Teuchos
00092 
00093 
00094 #endif // TEUCHOS_NULL_ITERATOR_TRAITS_HPP
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