From ef1f142cde96a09842e0a2ed3c9776a264ea2f11 Mon Sep 17 00:00:00 2001
From: Moonchild <moonchild@palemoon.org>
Date: Tue, 2 Jul 2024 00:14:28 +0200
Subject: [PATCH] Issue #2531 - Adjust rounding in toExponential (and kin) to
 round up at midpoint.

Resolves #2531
---
 js/src/dtoa.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/js/src/dtoa.c b/js/src/dtoa.c
index 1df01cc2ae..5d18f8c1e2 100644
--- a/js/src/dtoa.c
+++ b/js/src/dtoa.c
@@ -1,9 +1,10 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
 /****************************************************************
  *
- * The author of this software is David M. Gay.
+ * The original author of this software is David M. Gay.
  *
  * Copyright (c) 1991, 2000, 2001 by Lucent Technologies.
+ * Copyright (c) 2024 by Moonchild Productions.
  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose without fee is hereby granted, provided that this entire notice
@@ -2958,7 +2959,7 @@ dtoa
 				  }
 #endif
 				dval(d) += dval(d);
-				if (dval(d) > ds || (dval(d) == ds && L & 1)) {
+				if (dval(d) >= ds) {
  bump_up:
 					while(*--s == '9')
 						if (s == s0) {