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-rw-r--r--libio/iowpadn.c76
1 files changed, 76 insertions, 0 deletions
diff --git a/libio/iowpadn.c b/libio/iowpadn.c
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+++ b/libio/iowpadn.c
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+/* Copyright (C) 1993, 1997, 1999 Free Software Foundation, Inc.
+ This file is part of the GNU IO Library.
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License as
+ published by the Free Software Foundation; either version 2, or (at
+ your option) any later version.
+
+ This 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
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this library; see the file COPYING. If not, write to
+ the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
+ MA 02111-1307, USA.
+
+ As a special exception, if you link this library with files
+ compiled with a GNU compiler to produce an executable, this does
+ not cause the resulting executable to be covered by the GNU General
+ Public License. This exception does not however invalidate any
+ other reasons why the executable file might be covered by the GNU
+ General Public License. */
+
+#include "libioP.h"
+
+#define PADSIZE 16
+static wchar_t const blanks[PADSIZE] =
+{
+ L' ', L' ', L' ', L' ', L' ', L' ', L' ', L' ',
+ L' ', L' ', L' ', L' ', L' ', L' ', L' ', L' '
+};
+static wchar_t const zeroes[PADSIZE] =
+{
+ L'0', L'0', L'0', L'0', L'0', L'0', L'0', L'0',
+ L'0', L'0', L'0', L'0', L'0', L'0', L'0', L'0'
+};
+
+_IO_ssize_t
+_IO_wpadn (fp, pad, count)
+ _IO_FILE *fp;
+ wint_t pad;
+ _IO_ssize_t count;
+{
+ wchar_t padbuf[PADSIZE];
+ const wchar_t *padptr;
+ int i;
+ _IO_size_t written = 0;
+ _IO_size_t w;
+
+ if (pad == L' ')
+ padptr = blanks;
+ else if (pad == L'0')
+ padptr = zeroes;
+ else
+ {
+ for (i = PADSIZE; --i >= 0; )
+ padbuf[i] = pad;
+ padptr = padbuf;
+ }
+ for (i = count; i >= PADSIZE; i -= PADSIZE)
+ {
+ w = _IO_sputn (fp, (char *) padptr, PADSIZE);
+ written += w;
+ if (w != PADSIZE)
+ return written;
+ }
+
+ if (i > 0)
+ {
+ w = _IO_sputn (fp, (char *) padptr, i);
+ written += w;
+ }
+ return written;
+}