00001 /** @file 00002 00003 @section license License 00004 00005 Licensed to the Apache Software Foundation (ASF) under one 00006 or more contributor license agreements. See the NOTICE file 00007 distributed with this work for additional information 00008 regarding copyright ownership. The ASF licenses this file 00009 to you under the Apache License, Version 2.0 (the 00010 "License"); you may not use this file except in compliance 00011 with the License. You may obtain a copy of the License at 00012 00013 http://www.apache.org/licenses/LICENSE-2.0 00014 00015 Unless required by applicable law or agreed to in writing, software 00016 distributed under the License is distributed on an "AS IS" BASIS, 00017 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00018 See the License for the specific language governing permissions and 00019 limitations under the License. 00020 */ 00021 00022 /* 00023 http://www.isthe.com/chongo/tech/comp/fnv/ 00024 00025 Currently implemented FNV-1a 32bit and FNV-1a 64bit 00026 */ 00027 00028 #ifndef __HASH_FNV_H__ 00029 #define __HASH_FNV_H__ 00030 00031 #include "Hash.h" 00032 #include <stdint.h> 00033 00034 struct ATSHash32FNV1a:ATSHash32 00035 { 00036 ATSHash32FNV1a(void); 00037 void update(const void *data, size_t len); 00038 void final(void); 00039 uint32_t get(void) const; 00040 void clear(void); 00041 00042 private: 00043 uint32_t hval; 00044 }; 00045 00046 struct ATSHash64FNV1a:ATSHash64 00047 { 00048 ATSHash64FNV1a(void); 00049 void update(const void *data, size_t len); 00050 void final(void); 00051 uint64_t get(void) const; 00052 void clear(void); 00053 00054 private: 00055 uint64_t hval; 00056 }; 00057 00058 #endif
1.7.1