Add standalone test

Author: mborland

test/Jamfile

@@ -188,3 +188,4 @@ compile compile_tests/iostream_compile.cpp ;
 compile compile_tests/literals_compile.cpp ;
 compile compile_tests/numbers_compile.cpp ;
 compile compile_tests/string_compile.cpp ;
+compile compile_tests/uint128.cpp ;

test/compile_tests/uint128.cpp

@@ -0,0 +1,10 @@
+// Copyright 2025 Matt Borland
+// Distributed under the Boost Software License, Version 1.0.
+// https://www.boost.org/LICENSE_1_0.txt
+
+#include <boost/decimal/bid_conversion.hpp>
+
+int main()
+{
+    return 0;
+}

test/test_big_uints.cpp

@@ -497,6 +497,7 @@ int main()
 
   test_digit_counting<boost::decimal::detail::uint128>();
   test_digit_counting<boost::decimal::detail::uint256_t>();
+  test_digit_counting<boost::decimal::uint128>();
 
   return boost::report_errors();
 }