glibc/stdio-common/_i18n_number.h

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/* Copyright (C) 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@gnu.org>, 2000.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include "../locale/outdigits.h"
#include "../locale/outdigitswc.h"
static CHAR_T *
_i18n_number_rewrite (CHAR_T *w, CHAR_T *rear_ptr)
{
CHAR_T *src, *s;
/* Copy existing string so that nothing gets overwritten. */
src = (CHAR_T *) alloca ((rear_ptr - w) * sizeof (CHAR_T));
s = (CHAR_T *) __mempcpy (src, w,
(rear_ptr - w) * sizeof (CHAR_T));
w = rear_ptr;
/* Process all characters in the string. */
while (--s >= src)
{
if (*s >= '0' && *s <= '9')
{
if (sizeof (CHAR_T) == 1)
w = (CHAR_T *) outdigit_value ((char *) w, *s - '0');
else
*--w = (CHAR_T) outdigitwc_value (*s - '0');
}
else
*--w = *s;
}
return w;
}