source:
azure_iot_hub/trunk/musl-1.1.18/src/stdio/fgetws.c
Last change on this file was 389, checked in by , 5 years ago | |
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File size: 427 bytes |
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1 | #include "stdio_impl.h" |
2 | #include <wchar.h> |
3 | |
4 | wint_t __fgetwc_unlocked(FILE *); |
5 | |
6 | wchar_t *fgetws(wchar_t *restrict s, int n, FILE *restrict f) |
7 | { |
8 | wchar_t *p = s; |
9 | |
10 | if (!n--) return s; |
11 | |
12 | FLOCK(f); |
13 | |
14 | for (; n; n--) { |
15 | wint_t c = __fgetwc_unlocked(f); |
16 | if (c == WEOF) break; |
17 | *p++ = c; |
18 | if (c == '\n') break; |
19 | } |
20 | *p = 0; |
21 | if (ferror(f)) p = s; |
22 | |
23 | FUNLOCK(f); |
24 | |
25 | return (p == s) ? NULL : s; |
26 | } |
27 | |
28 | weak_alias(fgetws, fgetws_unlocked); |
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