From 7620089901827aa2df6108d7d1d7b16af4dae024 Mon Sep 17 00:00:00 2001
From: Andrew Kane <andrew@ankane.org>
Date: Mon, 4 Dec 2023 13:03:59 -0800
Subject: [PATCH] Improved Float8ToHalf [skip ci]

---
 src/half.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/half.c b/src/half.c
index 622ee5c..9392d9a 100644
--- a/src/half.c
+++ b/src/half.c
@@ -305,7 +305,15 @@ static half
 Float8ToHalf(double num)
 {
 	/* TODO Convert directly for greater accuracy */
-	return Float4ToHalf((float) num);
+	half		result = Float4ToHalfUnchecked((float) num);
+
+	/* TODO Perform checks without HalfToFloat4 */
+	if (unlikely(isinf(HalfToFloat4(result))) && !isinf(num))
+		float_overflow_error();
+	if (unlikely(HalfToFloat4(result) == 0.0f) && num != 0.0)
+		float_underflow_error();
+
+	return result;
 }
 
 /*