From 8a75be1b2053208eeb11e982034f6540408b5609 Mon Sep 17 00:00:00 2001
From: atsiv sivat <atsiv1@proton.me>
Date: Sun, 8 Mar 2026 00:55:06 +0000
Subject: [PATCH] add function normaliseInput to help sanatise and validate
 input before parsing

---
 src/core/lib/IEEEBinary.mjs | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/core/lib/IEEEBinary.mjs b/src/core/lib/IEEEBinary.mjs
index 27360b520..16e838eeb 100644
--- a/src/core/lib/IEEEBinary.mjs
+++ b/src/core/lib/IEEEBinary.mjs
@@ -22,6 +22,12 @@ const MAX_EXP    = (1n << EXP_BITS) - 1n;
 const EXP_BITS_NUM  = Number(EXP_BITS);
 const MANT_BITS_NUM = Number(MANT_BITS);
 
+function normaliseInput(input) {
+    if (input === null || input === undefined)
+        throw new Error("Invalid decimal number");
+    return String(input).trim();
+}
+
 
 /**
  * Compute 10^exp as BigInt without using ** on BigInt, to avoid
@@ -183,7 +189,7 @@ export function FromIEEE754Float64(binary64String) {
  * ToIEEE754Float64("23.300000000000000710542735760100185871124267578125");
  */
 export function ToIEEE754Float64(input) {
-    input = String(input).trim();
+    input = normaliseInput(input);
 
     const expOnes   = "1".repeat(EXP_BITS_NUM);
     const mantZeros = "0".repeat(MANT_BITS_NUM);