From 78bf6ec643b43f4800130ed73f743067b64d9031 Mon Sep 17 00:00:00 2001
From: Tan Shjie <746715040@qq.com>
Date: Tue, 20 Aug 2024 15:56:01 +0800
Subject: [PATCH] Update compass_search.cpp

0 <= stop range < start range
---
 src/algorithms/compass_search.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/algorithms/compass_search.cpp b/src/algorithms/compass_search.cpp
index 01d2b3a6e..cc4f881ec 100644
--- a/src/algorithms/compass_search.cpp
+++ b/src/algorithms/compass_search.cpp
@@ -53,8 +53,8 @@ compass_search::compass_search(unsigned max_fevals, double start_range, double s
         pagmo_throw(std::invalid_argument, "The start range must be in (0, 1], while a value of "
                                                + std::to_string(start_range) + " was detected.");
     }
-    if (stop_range > 1. || stop_range >= start_range || std::isnan(stop_range)) {
-        pagmo_throw(std::invalid_argument, "the stop range must be in (start_range, 1], while a value of "
+    if (stop_range < 0. || stop_range >= start_range || std::isnan(stop_range)) {
+        pagmo_throw(std::invalid_argument, "the stop range must be in [0, start_range), while a value of "
                                                + std::to_string(stop_range) + " was detected.");
     }
     if (reduction_coeff >= 1. || reduction_coeff <= 0. || std::isnan(reduction_coeff)) {