From 39c70047479e05b513bf4e7f390aee8f556ac0ca Mon Sep 17 00:00:00 2001
From: Zeno Rogue <zeno@attnam.com>
Date: Sun, 22 Jun 2025 19:02:55 +0200
Subject: [PATCH] reg3:: crash when matrix_order result appears to be greater
 than 1000

---
 reg3.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/reg3.cpp b/reg3.cpp
index ade5236d..7f9a5064 100644
--- a/reg3.cpp
+++ b/reg3.cpp
@@ -2883,6 +2883,7 @@ EX int matrix_order(const transmatrix A) {
   transmatrix T = A;
   int res = 1;
   while(!eqmatrix(T, Id)) {
+    if(res >= 1000) throw hr_exception("matrix_order failed");
     res++; T = T * A;
     }
   return res;