58 lines
1.7 KiB
C
58 lines
1.7 KiB
C
/* Copyright (C) 1995-2014 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library 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
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <stdlib.h>
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/* Conversion table. */
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static const char conv_table[64] =
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{
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'.', '/', '0', '1', '2', '3', '4', '5',
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'6', '7', '8', '9', 'A', 'B', 'C', 'D',
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'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L',
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'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T',
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'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b',
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'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j',
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'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r',
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's', 't', 'u', 'v', 'w', 'x', 'y', 'z'
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};
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char *
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l64a (n)
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long int n;
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{
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unsigned long int m = (unsigned long int) n;
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static char result[7];
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int cnt;
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/* The standard says that only 32 bits are used. */
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m &= 0xffffffff;
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if (m == 0ul)
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/* The value for N == 0 is defined to be the empty string. */
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return (char *) "";
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for (cnt = 0; m > 0ul; ++cnt)
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{
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result[cnt] = conv_table[m & 0x3f];
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m >>= 6;
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}
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result[cnt] = '\0';
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return result;
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}
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