| /* Copyright (C) 1995-2018 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include <stdlib.h> |
| |
| /* Conversion table. */ |
| static const char conv_table[64] = |
| { |
| '.', '/', '0', '1', '2', '3', '4', '5', |
| '6', '7', '8', '9', 'A', 'B', 'C', 'D', |
| 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', |
| 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', |
| 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', |
| 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', |
| 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', |
| 's', 't', 'u', 'v', 'w', 'x', 'y', 'z' |
| }; |
| |
| char * |
| l64a (long int n) |
| { |
| unsigned long int m = (unsigned long int) n; |
| static char result[7]; |
| int cnt; |
| |
| /* The standard says that only 32 bits are used. */ |
| m &= 0xffffffff; |
| |
| if (m == 0ul) |
| /* The value for N == 0 is defined to be the empty string. */ |
| return (char *) ""; |
| |
| for (cnt = 0; m > 0ul; ++cnt) |
| { |
| result[cnt] = conv_table[m & 0x3f]; |
| m >>= 6; |
| } |
| result[cnt] = '\0'; |
| |
| return result; |
| } |