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Remove the special case in pick_policy for integral types (refs #50)

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Peter Dimov
2022-01-18 19:25:32 +02:00
parent 9a61c8f8dd
commit d6576ed2f1
1 changed files with 0 additions and 38 deletions
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38
include/boost/unordered/detail/implementation.hpp
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@ -2063,44 +2063,6 @@ namespace boost {
{
};
// While the mix policy is generally faster, the prime policy is a lot
// faster when a large number consecutive integers are used, because
// there are no collisions. Since that is probably quite common, use
// prime policy for integeral types. But not the smaller ones, as they
// don't have enough unique values for this to be an issue.
template <> struct pick_policy2<int>
{
typedef prime_policy<std::size_t> type;
};
template <> struct pick_policy2<unsigned int>
{
typedef prime_policy<std::size_t> type;
};
template <> struct pick_policy2<long>
{
typedef prime_policy<std::size_t> type;
};
template <> struct pick_policy2<unsigned long>
{
typedef prime_policy<std::size_t> type;
};
#if !defined(BOOST_NO_LONG_LONG)
template <> struct pick_policy2<boost::long_long_type>
{
typedef prime_policy<std::size_t> type;
};
template <> struct pick_policy2<boost::ulong_long_type>
{
typedef prime_policy<std::size_t> type;
};
#endif
template <typename T>
struct pick_policy : pick_policy2<typename boost::remove_cv<T>::type>
{