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57 lines
2.6 KiB
C
57 lines
2.6 KiB
C
///////////////////////////////////////////////////////////////////////////////
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// //
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// This file is part of ModelBlocks. Copyright 2009, ModelBlocks developers. //
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// //
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// ModelBlocks is free software: you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation, either version 3 of the License, or //
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// (at your option) any later version. //
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// //
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// ModelBlocks 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 //
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// GNU General 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 //
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// along with ModelBlocks. If not, see <http://www.gnu.org/licenses/>. //
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// //
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// ModelBlocks developers designate this particular file as subject to //
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// the "Moses" exception as provided by ModelBlocks developers in //
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// the LICENSE file that accompanies this code. //
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// //
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///////////////////////////////////////////////////////////////////////////////
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/***********************************************
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* nl-tetrahex.h
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* a little header with some base conversion stuff
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* so that we can represent base 16, 32 or 64 with
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* one character.
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* 0, 1, 2, ..., 9, A, B, ..., Y, Z, a, b, ..., z, {, |
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* 0 1 2 9 10 11 34 35 36 37 61 62 63
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***********************************************/
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#include <cassert>
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#ifndef NL_TETRAHEX
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#define NL_TETRAHEX
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char intToTetraHex(int i) {
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assert(i < 64 && i >= 0);
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if(i < 10) return (i + '0');
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if(i > 35) return (i + 'a' - 36);
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return (i + 'A' - 10);
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}
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int tetraHexToInt(char c) {
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if(c < '0')
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fprintf(stderr, "Bad c: %d\n",(int)c);
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assert(c >= '0');
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if(c - '0' < 10) return (int)(c-'0');
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assert(c >= 'A');
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if(c - 'A' < 26) return (int)(c-'A'+10);
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assert(c >= 'a' && c < '}');
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return (int)(c-'a'+36);
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}
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#endif
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