misc/hsearch.c

   1 /* Copyright (C) 1993-2022 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <https://www.gnu.org/licenses/>.  */
  17
  18 #include <search.h>
  19
  20 /* The non-reentrant version use a global space for storing the table.  */
  21 static struct hsearch_data htab;
  22
  23
  24 /* Define the non-reentrant function using the reentrant counterparts.  */
  25 ENTRY *
  26 hsearch (ENTRY item, ACTION action)
  27 {
  28   ENTRY *result;
  29
  30   (void) __hsearch_r (item, action, &result, &htab);
  31
  32   return result;
  33 }
  34
  35
  36 int
  37 hcreate (size_t nel)
  38 {
  39   return __hcreate_r (nel, &htab);
  40 }
  41
  42
  43 void
  44 __hdestroy (void)
  45 {
  46   __hdestroy_r (&htab);
  47 }
  48 weak_alias (__hdestroy, hdestroy)
  49
  50 /* Make sure the table is freed if we want to free everything before
  51    exiting.  */
  52 text_set_element (__libc_subfreeres, __hdestroy);