1 /* hash-pjw.h -- declaration for a simple hash function 2 Copyright (C) 2001, 2003, 2009-2021 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 #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;