49 lines
2.3 KiB
C
49 lines
2.3 KiB
C
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/* +--------------------------------------------------------------------------+
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** | _ _ _ |
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** | | \ | | (_) |
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** | | \| | ___ _ __ _ |
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** | | . ` |/ _ \| |/ _` | |
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** | | |\ | (_) | | (_| | |
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** | |_| \_|\___/| |\__,_| |
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** | _/ | |
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** | |__/ |
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** +--------------------------------------------------------------------------+
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** | Copyright (c) 2022 Francesco Cozzuto <francesco.cozzuto@gmail.com> |
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** +--------------------------------------------------------------------------+
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** | This file is part of The Noja Interpreter. |
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** | |
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** | The Noja Interpreter is free software: you can redistribute it and/or |
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** | modify it under the terms of the GNU General Public License as published |
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** | by the Free Software Foundation, either version 3 of the License, or (at |
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** | your option) any later version. |
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** | |
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** | The Noja Interpreter is distributed in the hope that it will be useful, |
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** | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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** | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
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** | Public License for more details. |
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** | |
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** | You should have received a copy of the GNU General Public License along |
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** | with The Noja Interpreter. If not, see <http://www.gnu.org/licenses/>. |
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** +--------------------------------------------------------------------------+
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*/
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#include <stdint.h>
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#include "hash.h"
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int hashbytes(unsigned char *str, int len)
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{
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int x = 0; // Temp?
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x ^= *str << 7;
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for(int i = 0; i < len; i += 1)
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x = (1000003UL * x) ^ *str++;
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x ^= len;
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if(x == -1)
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x = -2;
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return x;
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} |