lib/hash-pjw.h

   1 /* hash-pjw.h -- declaration for a simple hash function
   2    Copyright (C) 2001, 2003, 2009-2019 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 General Public License as published by
   6    the Free Software Foundation; either version 3 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 General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  16
  17 #include <stddef.h>
  18
  19 /* Compute a hash code for a NUL-terminated string starting at X,
  20    and return the hash code modulo TABLESIZE.
  21    The result is platform dependent: it depends on the size of the 'size_t'
  22    type and on the signedness of the 'char' type.  */
  23 extern size_t hash_pjw (void const *x, size_t tablesize) _GL_ATTRIBUTE_PURE;