From: Rich Felker <dalias@aerifal.cx>
Date: Mon, 2 May 2011 02:59:14 +0000 (-0400)
Subject: fix undefined call order in fclose, possible lost output depending on compiler
X-Git-Url: http://nsz.repo.hu/git/?p=musl;a=commitdiff_plain;h=bd6746732536fdf2ebaadff6f98aee0879b1674d

fix undefined call order in fclose, possible lost output depending on compiler

pcc turned up this bug by calling f->close(f) before fflush(f),
resulting in lost output and error on flush.
---

diff --git a/src/stdio/fclose.c b/src/stdio/fclose.c
index 26bc37e8..9481470d 100644
--- a/src/stdio/fclose.c
+++ b/src/stdio/fclose.c
@@ -13,7 +13,7 @@ int fclose(FILE *f)
 		OFLUNLOCK();
 	}
 
-	r = fflush(f) | f->close(f);
+	r = -(fflush(f) || f->close(f));
 
 	if (!perm) free(f);