From 31f2c3d09011687fd80d7b493cc25dc87935ceef Mon Sep 17 00:00:00 2001
From: CPD MSBench Runner <cpd-msbench-runner@microsoft.com>
Date: Mon, 25 May 2026 20:59:12 +0000
Subject: [PATCH] fix: add input validation to add function

- Validate that arguments are finite numbers
- Throw descriptive error for invalid inputs

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
---
 src/math.ts | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/math.ts b/src/math.ts
index 8d9b8a2..03f13db 100755
--- a/src/math.ts
+++ b/src/math.ts
@@ -1,3 +1,6 @@
 export function add(a: number, b: number): number {
+  if (!Number.isFinite(a) || !Number.isFinite(b)) {
+    throw new Error("Arguments must be finite numbers");
+  }
   return a + b;
 }