2000-03-25 07:45:29 +00:00
|
|
|
/* This may look like C code, but it is really -*- C++ -*- */
|
|
|
|
|
|
|
|
|
|
/* Provides high-level routines to manipulate the keyword list
|
|
|
|
|
structures the code generation output.
|
|
|
|
|
|
2000-10-13 12:04:55 +00:00
|
|
|
Copyright (C) 1989-1998, 2000 Free Software Foundation, Inc.
|
2000-03-25 07:45:29 +00:00
|
|
|
written by Douglas C. Schmidt (schmidt@ics.uci.edu)
|
|
|
|
|
|
|
|
|
|
This file is part of GNU GPERF.
|
|
|
|
|
|
|
|
|
|
GNU GPERF is free software; you can redistribute it and/or modify
|
|
|
|
|
it under the terms of the GNU General Public License as published by
|
|
|
|
|
the Free Software Foundation; either version 1, or (at your option)
|
|
|
|
|
any later version.
|
|
|
|
|
|
|
|
|
|
GNU GPERF is distributed in the hope that it will be useful,
|
|
|
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
|
|
GNU General Public License for more details.
|
|
|
|
|
|
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
|
|
|
along with GNU GPERF; see the file COPYING. If not, write to the Free
|
|
|
|
|
Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111, USA. */
|
|
|
|
|
|
|
|
|
|
#ifndef gen_perf_h
|
|
|
|
|
#define gen_perf_h 1
|
|
|
|
|
|
|
|
|
|
#include "key-list.h"
|
|
|
|
|
#include "bool-array.h"
|
|
|
|
|
|
|
|
|
|
class Gen_Perf : private Key_List, private Bool_Array
|
|
|
|
|
{
|
|
|
|
|
private:
|
|
|
|
|
int max_hash_value; /* Maximum possible hash value. */
|
|
|
|
|
int fewest_collisions; /* Records fewest # of collisions for asso value. */
|
|
|
|
|
int num_done; /* Number of keywords processed without a collision. */
|
|
|
|
|
|
|
|
|
|
void change (List_Node *prior, List_Node *curr);
|
|
|
|
|
int affects_prev (char c, List_Node *curr);
|
|
|
|
|
static int hash (List_Node *key_node);
|
2000-10-13 12:04:55 +00:00
|
|
|
static int compute_disjoint_union (const char *set_1, int size_1, const char *set_2, int size_2, char *set_3);
|
2000-03-25 07:45:29 +00:00
|
|
|
static void sort_set (char *union_set, int len);
|
|
|
|
|
|
|
|
|
|
public:
|
|
|
|
|
Gen_Perf (void);
|
|
|
|
|
~Gen_Perf (void);
|
|
|
|
|
int operator () (void);
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
#endif
|
