From 7a4d158d2faf6b1982f98c298fbf3ce141ac8af5 Mon Sep 17 00:00:00 2001
From: Aryadev Chavali <aryadev@aryadevchavali.com>
Date: Thu, 27 Nov 2025 01:02:31 +0000
Subject: [PATCH] Add gcd to base.hpp

---
 src/base.hpp | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/base.hpp b/src/base.hpp
index b519dde..8947f32 100644
--- a/src/base.hpp
+++ b/src/base.hpp
@@ -37,6 +37,17 @@ inline bool index_has_value(index_t i)
   return i >= 0;
 }
 
+inline u64 gcd(u64 a, u64 b)
+{
+  if (a == b)
+    return a;
+  else if (a <= 1 || b <= 1)
+    return 1;
+  for (u64 r = b % a; r != 0; b = a, a = r, r = b % a)
+    continue;
+  return a;
+}
+
 #endif
 
 /* Copyright (C) 2025 Aryadev Chavali