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authorSzabolcs Nagy <nsz@port70.net>2018-09-10 19:06:21 +0000
committerRich Felker <dalias@aerifal.cx>2018-10-10 16:15:51 -0400
commit7b384c42b73ca1a1e150b3f255990ec53cedec60 (patch)
treeae13df6b4a44b1f6fa919fbdf9f57cafdca0f57f
parentb3389bbfb58697623621c70fade6e239952d0813 (diff)
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fix fesetround error checking
Rounding modes are not bit flags, but arbitrary non-negative integers.
-rw-r--r--src/fenv/fesetround.c11
1 files changed, 5 insertions, 6 deletions
diff --git a/src/fenv/fesetround.c b/src/fenv/fesetround.c
index 50e58f11..4e2f164d 100644
--- a/src/fenv/fesetround.c
+++ b/src/fenv/fesetround.c
@@ -7,18 +7,17 @@ hidden int __fesetround(int);
 
 int fesetround(int r)
 {
-	if (r & ~(
-		FE_TONEAREST
+	if (r != FE_TONEAREST
 #ifdef FE_DOWNWARD
-		|FE_DOWNWARD
+		&& r != FE_DOWNWARD
 #endif
 #ifdef FE_UPWARD
-		|FE_UPWARD
+		&& r != FE_UPWARD
 #endif
 #ifdef FE_TOWARDZERO
-		|FE_TOWARDZERO
+		&& r != FE_TOWARDZERO
 #endif
-		))
+	)
 		return -1;
 	return __fesetround(r);
 }