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GNU gperf is a perfect hash function generator. For a given list of strings, it produces a hash function and hash table in the form of C or C++ code, for looking up a value depending on the input string. The hash function is 'perfect,' which means that the hash table has no collisions, and the hash table lookup needs a single string comparison only. GNU gperf is highly customizable. There are options for generating C and C++ code, for emitting 'switch' statements or nested 'ifs' instead of a hash table, and for tuning the algorithm that gperf uses.


User manual available from

Heckert gnu.small.png This is a GNU package:gperf


Download version 3.0.4 (stable)
released on 5 February 2009


Related Projects


LicenseVerified byVerified onNotes
GPLv2Kelly Hopkins5 February 2009
GPLv3orlaterKelly Hopkins5 February 2009

Leaders and contributors

Bruno Haible Maintainer

Resources and communication

Audience Resource type URI
Bug Tracking,Developer,Support E-mail

Software prerequisites

Kind Description
Required to use libc6
Required to use libstdc++ 2.9

This entry (in part or in whole) was last reviewed on 24 September 2012.


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