Add reproducer test set

Author: mborland

test/Jamfile

@@ -70,6 +70,7 @@ run github_issue_1057.cpp ;
 compile-fail github_issue_1087.cpp ;
 run github_issue_1091.cpp ;
 run github_issue_1094.cpp ;
+run github_issue_1106.cpp ;
 run github_issue_1110.cpp ;
 run github_issue_1112.cpp ;
 

test/github_issue_1106.cpp

@@ -0,0 +1,35 @@
+// 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/1094
+
+#include <boost/decimal.hpp>
+#include <boost/core/lightweight_test.hpp>
+#include <limits>
+
+using namespace boost::decimal;
+
+template <typename T>
+void test()
+{
+    const auto a {std::numeric_limits<T>::lowest() / 99};
+    const T b {1, 2};
+    const auto c {a * b};
+
+    BOOST_TEST(isinf(c));
+    BOOST_TEST(signbit(c));
+}
+
+int main()
+{
+    test<decimal32_t>();
+    test<decimal64_t>();
+    test<decimal128_t>();
+
+    test<decimal_fast32_t>();
+    test<decimal_fast64_t>();
+    test<decimal_fast128_t>();
+
+    return boost::report_errors();
+}