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/* hash.c -- gas hash table code
Copyright (C) 1987-2022 Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
GAS 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 3, or (at your option)
any later version.
GAS 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 GAS; see the file COPYING. If not, write to the Free
Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
02110-1301, USA. */
#include "as.h"
/* Hash function for a string_tuple. */
hashval_t
hash_string_tuple (const void *e)
{
string_tuple_t *tuple = (string_tuple_t *) e;
return htab_hash_string (tuple->key);
}
/* Equality function for a string_tuple. */
int
eq_string_tuple (const void *a, const void *b)
{
const string_tuple_t *ea = (const string_tuple_t *) a;
const string_tuple_t *eb = (const string_tuple_t *) b;
return strcmp (ea->key, eb->key) == 0;
}
/* Insert ELEMENT into HTAB. If REPLACE is non-zero existing elements
are overwritten. If ELEMENT already exists, a pointer to the slot
is returned. Otherwise NULL is returned. */
void **
htab_insert (htab_t htab, void *element, int replace)
{
void **slot = htab_find_slot (htab, element, INSERT);
if (*slot != NULL)
{
if (replace)
{
if (htab->del_f)
(*htab->del_f) (*slot);
*slot = element;
}
return slot;
}
*slot = element;
return NULL;
}
/* Print statistics about a hash table. */
void
htab_print_statistics (FILE *f, const char *name, htab_t table)
{
fprintf (f, "%s hash statistics:\n", name);
fprintf (f, "\t%u searches\n", table->searches);
fprintf (f, "\t%u collisions\n", table->collisions);
fprintf (f, "\t%lu elements\n", (unsigned long) htab_elements (table));
fprintf (f, "\t%lu table size\n", (unsigned long) htab_size (table));
}
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