49d1a4c562
also start prefering NtDll API. so far: * NtQueryInformationFile * NtClose adds a performance workaround for windows unicode conversion. but that should probably be removed before merging
34 lines
638 B
C
34 lines
638 B
C
#include "stdio_impl.h"
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#include <wchar.h>
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#include <errno.h>
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wint_t __fgetwc_unlocked(FILE *);
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wchar_t *fgetws(wchar_t *restrict s, int n, FILE *restrict f)
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{
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wchar_t *p = s;
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if (!n--) return s;
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FLOCK(f);
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/* Setup a dummy errno so we can detect EILSEQ. This is
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* the only way to catch encoding errors in the form of a
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* partial character just before EOF. */
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errno = EAGAIN;
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for (; n; n--) {
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wint_t c = __fgetwc_unlocked(f);
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if (c == WEOF) break;
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*p++ = c;
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if (c == '\n') break;
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}
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*p = 0;
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if (ferror(f) || errno==EILSEQ) p = s;
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FUNLOCK(f);
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return (p == s) ? NULL : s;
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}
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weak_alias(fgetws, fgetws_unlocked);
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