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simplify hash calculation (we don't need combine with which(), using hash<T> is sufficient)

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artemp 2016-12-13 15:50:00 +01:00 committed by Dane Springmeyer
parent 8dee1a9088
commit 204d30e58d
1 changed files with 1 additions and 9 deletions
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10
include/mapnik/value_hash.hpp
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@ -54,11 +54,6 @@ struct value_hasher
return static_cast<std::size_t>(val.hashCode()); return static_cast<std::size_t>(val.hashCode());
} }
std::size_t operator()(value_integer val) const
{
return static_cast<std::size_t>(val);
}
template <class T> template <class T>
std::size_t operator()(T const& val) const std::size_t operator()(T const& val) const
{ {
@ -72,10 +67,7 @@ struct value_hasher
template <typename T> template <typename T>
std::size_t mapnik_hash_value(T const& val) std::size_t mapnik_hash_value(T const& val)
{ {
std::size_t seed = 0; return util::apply_visitor(detail::value_hasher(), val);
detail::hash_combine(seed, util::apply_visitor(detail::value_hasher(), val));
detail::hash_combine(seed, val.which());
return seed;
} }
} // namespace mapnik } // namespace mapnik