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add getter interface compatible with boost::variant

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This commit is contained in:
artemp 2014-08-11 13:23:01 +01:00
parent e315922b70
commit c197822116
1 changed files with 12 additions and 0 deletions
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12
include/mapnik/util/variant.hpp
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@ -745,6 +745,18 @@ auto VARIANT_INLINE static apply_visitor(F f, V & v0, V & v1) -> decltype(V::bin
return V::binary_visit(v0, v1, f);
}
// getter interface
template<typename ResultType, typename T>
ResultType & get(T & var)
{
return var.template get<ResultType>();
}
template<typename ResultType, typename T>
ResultType const& get(T const& var)
{
return var.template get<ResultType>();
}
// operator<<
template <typename charT, typename traits, typename Variant>