PHF: Tiny Perfect Hash Function

description

A simple implementation of the CHD perfect hash algorithm.

Implemented in C++ with C interfaces. Templatized interfaces for 32-bit, 64-bit, and string keys.

Builds Lua module API with -DPHF_LUALIB.

news

2014-11-20

Public release.

usage

From C++: PHF::init and PHF:hash.

From C: phf_init_uint32, phf_init_uin64, and phf_init_string. With a C11 or GCC-compatible compiler phf_init works like PHF::init in C++.

From Lua: phf.new, and the return value is the hash function.

license

Copyright (c) 2014 William Ahern

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

source

git clone http://25thandClement.com/~william/projects/phf.git

Or visit the GitHub mirror

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airctl | bsdauth | cnippets | libmime | libarena | libevnet | authldap | streamlocal | libnostd | zoned | dns.c | delegate.c | llrb.h | lpegk | json.c | cqueues | siphash.h | hexdump.c | timeout.c | luapath | luaossl | lunix | phf | runlua | AnonNet