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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 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 or C++ code, for emitting switch statements or nested
ifs instead of a hash table, and for tuning the algorithm
employed by gperf.
Online Manual is available at www.gnu.org/manual/gperf/index.html
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Copyright (C) 1998 Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA
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Updated: 2000-04-19 haible