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rewind: always clear error indicator.

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Required by POSIX:
http://pubs.opengroup.org/onlinepubs/009695399/functions/rewind.html

Obtained from:	Apple Inc. (Libc 997.90.3)
MFC after:	1 week
This commit is contained in:
pfg 2014-07-22 16:10:56 +00:00
parent 56b12303b3
commit 96faf15ff0
1 changed files with 2 additions and 3 deletions
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5
lib/libc/stdio/rewind.c
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@ -53,9 +53,8 @@ rewind(FILE *fp)
__sinit();
FLOCKFILE(fp);
if (_fseeko(fp, (off_t)0, SEEK_SET, 1) == 0) {
clearerr_unlocked(fp);
if (_fseeko(fp, (off_t)0, SEEK_SET, 1) == 0)
errno = serrno;
}
clearerr_unlocked(fp); /* POSIX: clear stdio error regardless */
FUNLOCKFILE(fp);
}