diff options
Diffstat (limited to 'utils/hash.h')
-rw-r--r-- | utils/hash.h | 21 |
1 files changed, 9 insertions, 12 deletions
diff --git a/utils/hash.h b/utils/hash.h index e1426ffb..24d2b6ad 100644 --- a/utils/hash.h +++ b/utils/hash.h @@ -3,7 +3,7 @@ #include <boost/functional/hash.hpp> -#include "murmur_hash.h" +#include "murmur_hash3.h" #ifdef HAVE_CONFIG_H #include "config.h" @@ -44,23 +44,21 @@ const unsigned GOLDEN_MEAN_FRACTION=2654435769U; // assumes C is POD template <class C> -struct murmur_hash -{ - typedef MurmurInt result_type; +struct murmur_hash { + typedef size_t result_type; typedef C /*const&*/ argument_type; result_type operator()(argument_type const& c) const { - return MurmurHash((void*)&c,sizeof(c)); + return cdec::MurmurHash3_64((void*)&c, sizeof(c), GOLDEN_MEAN_FRACTION); } }; // murmur_hash_array isn't std guaranteed safe (you need to use string::data()) template <> -struct murmur_hash<std::string> -{ - typedef MurmurInt result_type; +struct murmur_hash<std::string> { + typedef size_t result_type; typedef std::string /*const&*/ argument_type; result_type operator()(argument_type const& c) const { - return MurmurHash(c.data(),c.size()); + return cdec::MurmurHash3_64(c.data(), c.size(), GOLDEN_MEAN_FRACTION); } }; @@ -68,10 +66,10 @@ struct murmur_hash<std::string> template <class C> struct murmur_hash_array { - typedef MurmurInt result_type; + typedef size_t result_type; typedef C /*const&*/ argument_type; result_type operator()(argument_type const& c) const { - return MurmurHash(&*c.begin(),c.size()*sizeof(*c.begin())); + return cdec::MurmurHash3_64(&*c.begin(), c.size()*sizeof(*c.begin()), GOLDEN_MEAN_FRACTION); } }; @@ -95,7 +93,6 @@ typename H::mapped_type & get_or_construct(H &ht,K const& k,C0 const& c0) { } } - // get_or_call (0 arg) template <class H,class K,class F> typename H::mapped_type & get_or_call(H &ht,K const& k,F const& f) { |