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Add convenience typed hash functions

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This commit is contained in:
Danny Robson 2012-01-04 17:07:22 +11:00
parent e01fcdcd59
commit f71f15ebf1
1 changed files with 6 additions and 2 deletions
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4
hash.hpp
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@ -35,7 +35,11 @@ namespace util {
// General hashes for when you really just don't care about implementation // General hashes for when you really just don't care about implementation
inline uint32_t hash (uint32_t key) { return wang32 (key); } inline uint32_t hash (uint32_t key) { return wang32 (key); }
inline int32_t hash ( int32_t key) { return (int32_t) hash ((uint32_t)key); }
inline uint64_t hash (uint64_t key) { return wang64 (key); } inline uint64_t hash (uint64_t key) { return wang64 (key); }
inline int64_t hash ( int64_t key) { return (int64_t) hash ((uint64_t)key); }
inline uintptr_t hash (const void *key) { inline uintptr_t hash (const void *key) {
return sizeof (uintptr_t) == 32 ? wang32 (reinterpret_cast<uintptr_t> (key)) : return sizeof (uintptr_t) == 32 ? wang32 (reinterpret_cast<uintptr_t> (key)) :
wang64 (reinterpret_cast<uintptr_t> (key)); wang64 (reinterpret_cast<uintptr_t> (key));