Return to iopadn.c CVS log

Up to [Apple XNU] / GNUtools / libg++ / libio

Annotation of GNUtools/libg++/libio/iopadn.c, revision 1.1.1.1

1.1       root        1: /* 
                      2: Copyright (C) 1993 Free Software Foundation
                      3: 
                      4: This file is part of the GNU IO Library.  This library is free
                      5: software; you can redistribute it and/or modify it under the
                      6: terms of the GNU General Public License as published by the
                      7: Free Software Foundation; either version 2, or (at your option)
                      8: any later version.
                      9: 
                     10: This library is distributed in the hope that it will be useful,
                     11: but WITHOUT ANY WARRANTY; without even the implied warranty of
                     12: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     13: GNU General Public License for more details.
                     14: 
                     15: You should have received a copy of the GNU General Public License
                     16: along with GNU CC; see the file COPYING.  If not, write to
                     17: the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
                     18: 
                     19: As a special exception, if you link this library with files
                     20: compiled with a GNU compiler to produce an executable, this does not cause
                     21: the resulting executable to be covered by the GNU General Public License.
                     22: This exception does not however invalidate any other reasons why
                     23: the executable file might be covered by the GNU General Public License. */
                     24: 
                     25: #include "libioP.h"
                     26: 
                     27: #define PADSIZE 16
                     28: static char const blanks[PADSIZE] =
                     29: {' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' '};
                     30: static char const zeroes[PADSIZE] =
                     31: {'0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0'};
                     32: 
                     33: _IO_ssize_t
                     34: _IO_padn(fp, pad, count)
                     35:      _IO_FILE *fp;
                     36:      int pad;
                     37:      _IO_ssize_t count;
                     38: {
                     39:   char padbuf[PADSIZE];
                     40:   const char *padptr;
                     41:   register int i;
                     42:   _IO_size_t written = 0, w;
                     43:   
                     44:   if (pad == ' ')
                     45:     padptr = blanks;
                     46:   else if (pad == '0')
                     47:     padptr = zeroes;
                     48:   else
                     49:     {
                     50:       for (i = PADSIZE; --i >= 0; ) padbuf[i] = pad;
                     51:       padptr = padbuf;
                     52:     }
                     53:   for (i = count; i >= PADSIZE; i -= PADSIZE)
                     54:     {
                     55:       w = _IO_sputn(fp, padptr, PADSIZE);
                     56:       written += w;
                     57:       if (w != PADSIZE)
                     58:        return written;
                     59:     }
                     60:       
                     61:   if (i > 0)
                     62:     {
                     63:       w = _IO_sputn(fp, padptr, i);
                     64:       written += w;
                     65:     }
                     66:   return written;
                     67: }

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.