String2Hash

版本 1.0.0.0 (1.6 KB) 作者: Dirk-Jan Kroon
Convert a String Array (Text) to a hash code
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更新时间 2010/6/18

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This function generates a hash value from a text string

hash=string2hash(str,type);

inputs,
str : The text string, or array with text strings.
outputs,
hash : The hash value, integer value between 0 and 2^32-1
type : Type of has 'djb2' (default) or 'sdbm'

From c-code on : http://www.cse.yorku.ca/~oz/hash.html

djb2
this algorithm was first reported by dan bernstein many years ago
in comp.lang.c

sdbm
this algorithm was created for sdbm (a public-domain reimplementation of
ndbm) database library. it was found to do well in scrambling bits,
causing better distribution of the keys and fewer splits. it also happens
to be a good general hashing function with good distribution.

example,

hash=string2hash('hello world');
disp(hash);

引用格式

Dirk-Jan Kroon (2025). String2Hash (https://www.mathworks.com/matlabcentral/fileexchange/27940-string2hash), MATLAB Central File Exchange. 检索时间: .

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版本 已发布 发行说明
1.0.0.0