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

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This commit is contained in:
artemp 2016-12-13 15:50:00 +01:00
parent 8e15353818
commit 0307499753
1 changed files with 1 additions and 9 deletions
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10
include/mapnik/value/hash.hpp
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@ -56,11 +56,6 @@ struct value_hasher
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>
std::size_t operator()(T const& val) const
{
@ -74,10 +69,7 @@ struct value_hasher
template <typename T>
std::size_t value_hash(T const& val)
{
std::size_t seed = 0;
detail::hash_combine(seed, util::apply_visitor(detail::value_hasher(), val));
detail::hash_combine(seed, val.which());
return seed;
return util::apply_visitor(detail::value_hasher(), val);
}
} // namespace mapnik