Last change
on this file since 444 was 444, checked in by coas-nagasima, 4 years ago |
muslのソースコードを追加
|
-
Property svn:eol-style
set to
native
-
Property svn:mime-type
set to
text/x-csrc;charset=UTF-8
|
File size:
801 bytes
|
Rev | Line | |
---|
[444] | 1 | #include <wchar.h>
|
---|
| 2 |
|
---|
| 3 | size_t wcsnrtombs(char *restrict dst, const wchar_t **restrict wcs, size_t wn, size_t n, mbstate_t *restrict st)
|
---|
| 4 | {
|
---|
| 5 | size_t l, cnt=0, n2;
|
---|
| 6 | char *s, buf[256];
|
---|
| 7 | const wchar_t *ws = *wcs;
|
---|
| 8 | const wchar_t *tmp_ws;
|
---|
| 9 |
|
---|
| 10 | if (!dst) s = buf, n = sizeof buf;
|
---|
| 11 | else s = dst;
|
---|
| 12 |
|
---|
| 13 | while ( ws && n && ( (n2=wn)>=n || n2>32 ) ) {
|
---|
| 14 | if (n2>=n) n2=n;
|
---|
| 15 | tmp_ws = ws;
|
---|
| 16 | l = wcsrtombs(s, &ws, n2, 0);
|
---|
| 17 | if (!(l+1)) {
|
---|
| 18 | cnt = l;
|
---|
| 19 | n = 0;
|
---|
| 20 | break;
|
---|
| 21 | }
|
---|
| 22 | if (s != buf) {
|
---|
| 23 | s += l;
|
---|
| 24 | n -= l;
|
---|
| 25 | }
|
---|
| 26 | wn = ws ? wn - (ws - tmp_ws) : 0;
|
---|
| 27 | cnt += l;
|
---|
| 28 | }
|
---|
| 29 | if (ws) while (n && wn) {
|
---|
| 30 | l = wcrtomb(s, *ws, 0);
|
---|
| 31 | if ((l+1)<=1) {
|
---|
| 32 | if (!l) ws = 0;
|
---|
| 33 | else cnt = l;
|
---|
| 34 | break;
|
---|
| 35 | }
|
---|
| 36 | ws++; wn--;
|
---|
| 37 | /* safe - this loop runs fewer than sizeof(buf) times */
|
---|
| 38 | s+=l; n-=l;
|
---|
| 39 | cnt += l;
|
---|
| 40 | }
|
---|
| 41 | if (dst) *wcs = ws;
|
---|
| 42 | return cnt;
|
---|
| 43 | }
|
---|
Note:
See
TracBrowser
for help on using the repository browser.