From: Szabolcs Nagy <nsz@port70.net>
Date: Wed, 10 Jan 2018 21:55:53 +0000 (+0000)
Subject: fgetwc may clobber errno when the result is not WEOF
X-Git-Url: http://nsz.repo.hu/git/?p=libc-test;a=commitdiff_plain;h=174ab56c0677389bd4e851654d45bdb5473912eb

fgetwc may clobber errno when the result is not WEOF
---

diff --git a/src/regression/fgetwc-buffering.c b/src/regression/fgetwc-buffering.c
index a73ad54..dc0a13d 100644
--- a/src/regression/fgetwc-buffering.c
+++ b/src/regression/fgetwc-buffering.c
@@ -23,11 +23,11 @@ int main()
 	A(write(p[1], "\200", 1) == 1);
 	close(p[1]);
 
-	errno = 0;
 	wc = fgetwc(stdin);
 	if (wc != 0x800)
 		t_error("wanted 0x800, got 0x%x\n", (unsigned)wc);
 
+	errno = 0;
 	wc = fgetwc(stdin);
 	if (wc != WEOF)
 		t_error("wanted WEOF, got 0x%x\n", (unsigned)wc);