intl/hash-string.h

   1 /* Description of GNU message catalog format: string hashing function.
   2    Copyright (C) 1995-2021 Free Software Foundation, Inc.
   3
   4    This program is free software: you can redistribute it and/or modify
   5    it under the terms of the GNU Lesser General Public License as published by
   6    the Free Software Foundation; either version 2.1 of the License, or
   7    (at your option) any later version.
   8
   9    This program 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
  12    GNU Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public License
  15    along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  16
  17 /* @@ end of prolog @@ */
  18
  19 /* We assume to have `unsigned long int' value with at least 32 bits.  */
  20 #define HASHWORDBITS 32
  21
  22
  23 #ifndef _LIBC
  24 # ifdef IN_LIBINTL
  25 #  define __hash_string libintl_hash_string
  26 # else
  27 #  define __hash_string hash_string
  28 # endif
  29 #endif
  30
  31 /* Defines the so called `hashpjw' function by P.J. Weinberger
  32    [see Aho/Sethi/Ullman, COMPILERS: Principles, Techniques and Tools,
  33    1986, 1987 Bell Telephone Laboratories, Inc.]  */
  34 extern unsigned long int __hash_string (const char *str_param)
  35      attribute_hidden;