| /* |
| Copyright (C) 1993 Free Software Foundation |
| |
| 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 GNU CC; see the file COPYING. If not, write to |
| the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, 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 char const blanks[PADSIZE] = |
| {' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' '}; |
| static char const zeroes[PADSIZE] = |
| {'0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0'}; |
| |
| _IO_ssize_t |
| DEFUN(_IO_padn, (fp, pad, count), |
| _IO_FILE *fp AND int pad AND _IO_ssize_t count) |
| { |
| char padbuf[PADSIZE]; |
| const char *padptr; |
| register int i; |
| _IO_size_t written = 0, w; |
| |
| if (pad == ' ') |
| padptr = blanks; |
| else if (pad == '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, padptr, PADSIZE); |
| written += w; |
| if (w != PADSIZE) |
| return written; |
| } |
| |
| if (i > 0) |
| { |
| w = _IO_sputn(fp, padptr, i); |
| written += w; |
| } |
| return written; |
| } |