From 371913c93cc3ffc4dd0a4a18bc0f3021f0ec05db Mon Sep 17 00:00:00 2001
From: Jakob Kaivo <jkk@ung.org>
Date: Tue, 30 Jan 2024 13:24:56 -0500
Subject: update standard and safety checks

---
 src/math/acos.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'src/math/acos.c')

diff --git a/src/math/acos.c b/src/math/acos.c
index 8c934d0e..ac382bfa 100644
--- a/src/math/acos.c
+++ b/src/math/acos.c
@@ -9,6 +9,7 @@
 
 TYPE TGFN(acos)(TYPE x)
 {
+	SIGNAL_SAFE(0);
 	if (TGFN(fabs)(x) > 1) {
 		feraiseexcept(FE_INVALID);
 		return NAN;
-- 
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