From befafb1d6e222232db9822bb76696ffc046f2a69 Mon Sep 17 00:00:00 2001
From: Martun Karapetyan <martun.karapetyan@gmail.com>
Date: Wed, 11 Dec 2024 14:51:17 +0400
Subject: [PATCH] A small bug related to creation of evaluation domains of size
 1.

---
 .../nil/crypto3/math/algorithms/make_evaluation_domain.hpp  | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/crypto3/libs/math/include/nil/crypto3/math/algorithms/make_evaluation_domain.hpp b/crypto3/libs/math/include/nil/crypto3/math/algorithms/make_evaluation_domain.hpp
index e18ff409c7..9ad6011735 100644
--- a/crypto3/libs/math/include/nil/crypto3/math/algorithms/make_evaluation_domain.hpp
+++ b/crypto3/libs/math/include/nil/crypto3/math/algorithms/make_evaluation_domain.hpp
@@ -107,6 +107,12 @@ namespace nil {
 
                 typedef std::shared_ptr<evaluation_domain<FieldType, ValueType>> result_type;
 
+				// If m is 1, the value of (std::size_t(std::ceil(std::log2(m))) - 1) is -1, and stored in size_t it becomes a
+				// very large value.
+				if (m == 1) {
+					return result_type();
+				}
+
                 const std::size_t big = 1ul << (std::size_t(std::ceil(std::log2(m))) - 1);
                 const std::size_t rounded_small = (1ul << std::size_t(std::ceil(std::log2(m - big))));