- Method hash_8_0
Return an integer derived from the string
s. The same string always hashes to the same value, also between processes, architectures, and Pike versions (see compatibility notes below, though).
maxis given, the result will be >= 0 and <
max, otherwise the result will be >= 0 and <= 0x7fffffff.
Use hash_value() for in-process hashing (eg, for implementing
lfun::_hash()) or one of the cryptographic hash functions.
This function is really bad at hashing strings. Similar string often return similar hash values.
It is especially bad for url:s, paths and similarly formatted strings.
The hash algorithm was changed in Pike 7.5. If you want a hash that is compatible with Pike 7.4 and earlier, use hash_7_4(). The difference only affects wide strings.
The hash algorithm was also changed in Pike 7.1. If you want a hash that is compatible with Pike 7.0 and earlier, use hash_7_0().
- See also