Last change
on this file since 389 was 389, checked in by coas-nagasima, 5 years ago |
ビルドが通るよう更新
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Property svn:eol-style
set to
native
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Property svn:mime-type
set to
text/x-csrc;charset=UTF-8
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File size:
573 bytes
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Rev | Line | |
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[388] | 1 | #include <uchar.h>
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| 2 | #include <errno.h>
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| 3 | #include <wchar.h>
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| 4 |
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| 5 | size_t c16rtomb(char *restrict s, char16_t c16, mbstate_t *restrict ps)
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| 6 | {
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| 7 | static unsigned internal_state;
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| 8 | if (!ps) ps = (void *)&internal_state;
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| 9 | unsigned *x = (unsigned *)ps;
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| 10 | wchar_t wc;
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| 11 |
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| 12 | if (!s) {
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| 13 | if (*x) goto ilseq;
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| 14 | return 1;
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| 15 | }
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| 16 |
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| 17 | if (!*x && c16 - 0xd800u < 0x400) {
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| 18 | *x = c16 - 0xd7c0 << 10;
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| 19 | return 0;
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| 20 | }
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| 21 |
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| 22 | if (*x) {
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| 23 | if (c16 - 0xdc00u >= 0x400) goto ilseq;
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| 24 | else wc = *x + c16 - 0xdc00;
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| 25 | *x = 0;
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| 26 | } else {
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| 27 | wc = c16;
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| 28 | }
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| 29 | return wcrtomb(s, wc, 0);
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| 30 |
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| 31 | ilseq:
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| 32 | *x = 0;
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| 33 | errno = EILSEQ;
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| 34 | return -1;
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| 35 | }
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