46 lines
1.5 KiB
C
46 lines
1.5 KiB
C
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/* Internal function for converting integers to ASCII.
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Copyright (C) 1994 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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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 Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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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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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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Cambridge, MA 02139, USA. */
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#include <ansidecl.h>
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#include "_itoa.h"
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/* Lower-case digits. */
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CONST char _itoa_lower_digits[] = "0123456789abcdefghijklmnopqrstuvwxyz";
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/* Upper-case digits. */
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CONST char _itoa_upper_digits[] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
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char *
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DEFUN(_itoa, (value, buflim, base, upper_case),
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unsigned long long int value AND char *buflim AND
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unsigned int base AND int upper_case)
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{
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/* Base-36 digits for numbers. */
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CONST char *digits = upper_case ? _itoa_upper_digits : _itoa_lower_digits;
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register char *bp = buflim;
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while (value > 0)
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{
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*--bp = digits[value % base];
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value /= base;
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}
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return bp;
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}
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