Add reproducer test set

Author: mborland

test/Jamfile

@@ -48,6 +48,7 @@ run-fail benchmark_uint256.cpp ;
 
 run compare_dec128_and_fast.cpp ;
 compile-fail concepts_test.cpp ;
+
 run crash_report_1.cpp ;
 run github_issue_426.cpp ;
 run github_issue_448.cpp ;
@@ -69,6 +70,8 @@ run github_issue_1057.cpp ;
 compile-fail github_issue_1087.cpp ;
 run github_issue_1091.cpp ;
 run github_issue_1094.cpp ;
+run github_issue_1112.cpp ;
+
 run link_1.cpp link_2.cpp link_3.cpp ;
 run quick.cpp ;
 run random_decimal32_comp.cpp ;

test/github_issue_1112.cpp

@@ -0,0 +1,27 @@
+// Copyright 2025 Matt Borland
+// Distributed under the Boost Software License, Version 1.0.
+// https://www.boost.org/LICENSE_1_0.txt
+//
+// See: https://github.com/cppalliance/decimal/issues/1112
+
+#include <boost/decimal.hpp>
+#include <boost/core/lightweight_test.hpp>
+
+using namespace boost::decimal;
+
+template <typename T>
+void reproducer()
+{
+    const auto dec_res {static_cast<int>(nearbyint(T{2325, -1}))};
+    const auto dbl_res {static_cast<int>(std::nearbyint(232.5))};
+    BOOST_TEST_EQ(dec_res, dbl_res);
+}
+
+int main()
+{
+    reproducer<decimal32_t>();
+    reproducer<decimal64_t>();
+    reproducer<decimal128_t>();
+
+    return boost::report_errors();
+}