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688903eb | 1 | /* Copyright (C) 1993-2018 Free Software Foundation, Inc. |
41bdb6e2 | 2 | This file is part of the GNU C Library. |
d64b6ad0 | 3 | |
41bdb6e2 AJ |
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. | |
d64b6ad0 | 8 | |
41bdb6e2 AJ |
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 | |
d64b6ad0 | 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
41bdb6e2 | 12 | Lesser General Public License for more details. |
d64b6ad0 | 13 | |
41bdb6e2 | 14 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 PE |
15 | License along with the GNU C Library; if not, see |
16 | <http://www.gnu.org/licenses/>. | |
d64b6ad0 | 17 | |
41bdb6e2 AJ |
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. */ | |
d64b6ad0 UD |
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 | |
9d46370c | 42 | _IO_wpadn (_IO_FILE *fp, wint_t pad, _IO_ssize_t count) |
d64b6ad0 UD |
43 | { |
44 | wchar_t padbuf[PADSIZE]; | |
45 | const wchar_t *padptr; | |
46 | int i; | |
47 | _IO_size_t written = 0; | |
48 | _IO_size_t w; | |
49 | ||
50 | if (pad == L' ') | |
51 | padptr = blanks; | |
52 | else if (pad == L'0') | |
53 | padptr = zeroes; | |
54 | else | |
55 | { | |
56 | for (i = PADSIZE; --i >= 0; ) | |
57 | padbuf[i] = pad; | |
58 | padptr = padbuf; | |
59 | } | |
60 | for (i = count; i >= PADSIZE; i -= PADSIZE) | |
61 | { | |
62 | w = _IO_sputn (fp, (char *) padptr, PADSIZE); | |
63 | written += w; | |
64 | if (w != PADSIZE) | |
3d110c7c | 65 | return written; |
d64b6ad0 UD |
66 | } |
67 | ||
68 | if (i > 0) | |
69 | { | |
70 | w = _IO_sputn (fp, (char *) padptr, i); | |
71 | written += w; | |
72 | } | |
73 | return written; | |
74 | } |