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gperf.0
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1995-08-24
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GPERF(1) GPERF(1)
NNAAMMEE
gperf - generate a perfect hash function from a key set
SSYYNNOOPPSSIISS
ggppeerrff [ --aaddgghhiijjkkllnnoopprrssSSttvv ] [ _k_e_y_f_i_l_e ]
DDEESSCCRRIIPPTTIIOONN
_g_p_e_r_f reads a set of ``keys'' from _k_e_y_f_i_l_e (or, by
default, from the standard input) and attempts to find a
non-minimal perfect hashing function that recognizes a
member of the key set in constant, i.e., O(1), time. If
such a function is found the program generates a pair of _C
source code routines that perform the hashing and table
lookup. All generated code is directed to the standard
output.
Please refer to the _g_p_e_r_f_._t_e_x_i_n_f_o file for more informa-
tion. This file is distributed with _g_p_e_r_f release.
December 16, 1988 1