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Improve hasher for IPAddress

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This commit is contained in:
Vinnie Falco
2013-11-03 12:50:17 -08:00
parent 56c5c2ebaa
commit 55045b5fe9
1 changed files with 37 additions and 13 deletions
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50
beast/net/IPAddress.h
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@@ -27,6 +27,18 @@
#include "../CStdInt.h"
#include "../mpl/IfCond.h"
namespace std {
template <typename T>
struct hash;
//template <>
//struct hash <beast::IPAddress>;
}
//------------------------------------------------------------------------------
namespace beast {
/** Represents an IP address (v4 or v6) and port combination. */
@@ -309,19 +321,7 @@ public:
operator std::string () const;
/** @} */
struct hasher
{
std::size_t operator() (IPAddress const& value) const
{
std::size_t hash (0);
if (value.isV4())
hash = V4::hasher() (value.v4());
else if (value.isV6())
hash = V6::hasher() (value.v6());
hash += value.port();
return hash;
}
};
typedef std::hash <IPAddress> hasher;
struct key_equal;
@@ -374,4 +374,28 @@ struct IPAddress::key_equal
}
//------------------------------------------------------------------------------
namespace std {
template <typename T>
struct hash;
template <>
struct hash <beast::IPAddress>
{
std::size_t operator() (beast::IPAddress const& value) const
{
std::size_t hash (0);
if (value.isV4())
hash = beast::IPAddress::V4::hasher() (value.v4());
else if (value.isV6())
hash = beast::IPAddress::V6::hasher() (value.v6());
hash += value.port();
return hash;
}
};
}
#endif