| 1 | /* Copyright (C) 1999-2022 Free Software Foundation, Inc. |
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| 2 | This file is part of the GNU C Library. |
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| 3 | |
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| 4 | The GNU C Library is free software; you can redistribute it and/or |
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| 5 | modify it under the terms of the GNU Lesser General Public |
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| 6 | License as published by the Free Software Foundation; either |
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| 7 | version 2.1 of the License, or (at your option) any later version. |
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| 8 | |
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| 9 | The GNU C Library is distributed in the hope that it will be useful, |
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 12 | Lesser General Public License for more details. |
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| 13 | |
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| 14 | You should have received a copy of the GNU Lesser General Public |
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| 15 | License along with the GNU C Library; if not, see |
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| 16 | <https://www.gnu.org/licenses/>. */ |
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| 17 | |
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| 18 | |
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| 19 | /* The hashing function used for the table with collation symbols. */ |
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| 20 | static int32_t __attribute__ ((pure, unused)) |
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| 21 | elem_hash (const char *str, int_fast32_t n) |
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| 22 | { |
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| 23 | int32_t result = n; |
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| 24 | |
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| 25 | while (n-- > 0) |
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| 26 | { |
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| 27 | result <<= 3; |
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| 28 | result += *str++; |
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| 29 | } |
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| 30 | |
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| 31 | return result; |
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| 32 | } |
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| 33 | |
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