| lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame^] | 1 | /* Copyright (C) 1993-2015 Free Software Foundation, Inc. |
| 2 | This file is part of the GNU C Library. |
| 3 | |
| 4 | The GNU C Library is free software; you can redistribute it and/or |
| 5 | modify it under the terms of the GNU Lesser General Public |
| 6 | License as published by the Free Software Foundation; either |
| 7 | version 2.1 of the License, or (at your option) any later version. |
| 8 | |
| 9 | The GNU C Library is distributed in the hope that it will be useful, |
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 12 | Lesser General Public License for more details. |
| 13 | |
| 14 | You should have received a copy of the GNU Lesser General Public |
| 15 | License along with the GNU C Library; if not, see |
| 16 | <http://www.gnu.org/licenses/>. |
| 17 | |
| 18 | As a special exception, if you link the code in this file with |
| 19 | files compiled with a GNU compiler to produce an executable, |
| 20 | that does not cause the resulting executable to be covered by |
| 21 | the GNU Lesser General Public License. This exception does not |
| 22 | however invalidate any other reasons why the executable file |
| 23 | might be covered by the GNU Lesser General Public License. |
| 24 | This exception applies to code released by its copyright holders |
| 25 | in files containing the exception. */ |
| 26 | |
| 27 | #include "libioP.h" |
| 28 | |
| 29 | #define PADSIZE 16 |
| 30 | static wchar_t const blanks[PADSIZE] = |
| 31 | { |
| 32 | L' ', L' ', L' ', L' ', L' ', L' ', L' ', L' ', |
| 33 | L' ', L' ', L' ', L' ', L' ', L' ', L' ', L' ' |
| 34 | }; |
| 35 | static wchar_t const zeroes[PADSIZE] = |
| 36 | { |
| 37 | L'0', L'0', L'0', L'0', L'0', L'0', L'0', L'0', |
| 38 | L'0', L'0', L'0', L'0', L'0', L'0', L'0', L'0' |
| 39 | }; |
| 40 | |
| 41 | _IO_ssize_t |
| 42 | _IO_wpadn (fp, pad, count) |
| 43 | _IO_FILE *fp; |
| 44 | wint_t pad; |
| 45 | _IO_ssize_t count; |
| 46 | { |
| 47 | wchar_t padbuf[PADSIZE]; |
| 48 | const wchar_t *padptr; |
| 49 | int i; |
| 50 | _IO_size_t written = 0; |
| 51 | _IO_size_t w; |
| 52 | |
| 53 | if (pad == L' ') |
| 54 | padptr = blanks; |
| 55 | else if (pad == L'0') |
| 56 | padptr = zeroes; |
| 57 | else |
| 58 | { |
| 59 | for (i = PADSIZE; --i >= 0; ) |
| 60 | padbuf[i] = pad; |
| 61 | padptr = padbuf; |
| 62 | } |
| 63 | for (i = count; i >= PADSIZE; i -= PADSIZE) |
| 64 | { |
| 65 | w = _IO_sputn (fp, (char *) padptr, PADSIZE); |
| 66 | written += w; |
| 67 | if (w != PADSIZE) |
| 68 | return written; |
| 69 | } |
| 70 | |
| 71 | if (i > 0) |
| 72 | { |
| 73 | w = _IO_sputn (fp, (char *) padptr, i); |
| 74 | written += w; |
| 75 | } |
| 76 | return written; |
| 77 | } |