1  /* hash-pjw.h -- declaration for a simple hash function
       2     Copyright (C) 2001, 2003, 2009-2023 Free Software Foundation, Inc.
       3  
       4     This file is free software: you can redistribute it and/or modify
       5     it under the terms of the GNU Lesser General Public License as
       6     published by the Free Software Foundation; either version 2.1 of the
       7     License, or (at your option) any later version.
       8  
       9     This file 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  /* This file uses _GL_ATTRIBUTE_PURE.  */
      18  #if !_GL_CONFIG_H_INCLUDED
      19   #error "Please include config.h first."
      20  #endif
      21  
      22  #include <stddef.h>
      23  
      24  /* Compute a hash code for a NUL-terminated string starting at X,
      25     and return the hash code modulo TABLESIZE.
      26     The result is platform dependent: it depends on the size of the 'size_t'
      27     type and on the signedness of the 'char' type.  */
      28  extern size_t hash_pjw (void const *x, size_t tablesize) _GL_ATTRIBUTE_PURE;