66 lines
1.9 KiB
C
66 lines
1.9 KiB
C
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/*
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Copyright (C) 1993 Free Software Foundation
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This file is part of the GNU IO Library. This library is free
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software; you can redistribute it and/or modify it under the
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terms of the GNU General Public License as published by the
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Free Software Foundation; either version 2, or (at your option)
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any later version.
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This 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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As a special exception, if you link this library with files
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compiled with a GNU compiler to produce an executable, this does not cause
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the resulting executable to be covered by the GNU General Public License.
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This exception does not however invalidate any other reasons why
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the executable file might be covered by the GNU General Public License. */
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#include "libioP.h"
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#define PADSIZE 16
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static char const blanks[PADSIZE] =
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{' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' '};
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static char const zeroes[PADSIZE] =
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{'0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0'};
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_IO_ssize_t
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DEFUN(_IO_padn, (fp, pad, count),
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_IO_FILE *fp AND int pad AND _IO_ssize_t count)
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{
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char padbuf[PADSIZE];
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const char *padptr;
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register int i;
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_IO_size_t written = 0, w;
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if (pad == ' ')
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padptr = blanks;
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else if (pad == '0')
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padptr = zeroes;
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else
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{
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for (i = PADSIZE; --i >= 0; ) padbuf[i] = pad;
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padptr = padbuf;
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}
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for (i = count; i >= PADSIZE; i -= PADSIZE)
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{
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w = _IO_sputn(fp, padptr, PADSIZE);
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written += w;
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if (w != PADSIZE)
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return written;
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}
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if (i > 0)
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{
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w = _IO_sputn(fp, padptr, i);
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written += w;
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}
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return written;
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}
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