From 27869b1a379cda43900ae5146252d0501fdbb71f Mon Sep 17 00:00:00 2001
From: Alex <dudesuchamazing@gmail.com>
Date: Thu, 14 Jul 2022 18:42:48 +0300
Subject: [PATCH] Don't recalculate constants at every call in isqrt.

---
 libs/kimath/src/geometry/seg.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/libs/kimath/src/geometry/seg.cpp b/libs/kimath/src/geometry/seg.cpp
index 479317bd95..a15d62c9a5 100644
--- a/libs/kimath/src/geometry/seg.cpp
+++ b/libs/kimath/src/geometry/seg.cpp
@@ -54,11 +54,14 @@ constexpr T ct_sqrt(T x)
   return sqrt_helper<T>(x, 0, x / 2 + 1);
 }
 
+template <typename T>
+static constexpr T sqrt_max_typed = ct_sqrt( std::numeric_limits<T>::max() );
+
 template <typename T>
 T isqrt(T x)
 {
   T r = (T) std::sqrt((double) x);
-  T sqrt_max = ct_sqrt(std::numeric_limits<T>::max());
+  T sqrt_max = sqrt_max_typed<T>;
 
   while (r < sqrt_max && r * r < x)
     r++;