Test unsigned literals

Author: mborland

include/boost/safe_numbers.hpp

@@ -8,5 +8,6 @@
 #include <boost/safe_numbers/unsigned_integers.hpp>
 #include <boost/safe_numbers/iostream.hpp>
 #include <boost/safe_numbers/limits.hpp>
+#include <boost/safe_numbers/literals.hpp>
 
 #endif //BOOST_SAFENUMBERS_HPP

modules/Jamfile

@@ -34,6 +34,7 @@ run ../test/quick.cpp safe_numbers : : : <dependency>safe_numbers ;
 run ../test/test_construct_unsigned_type.cpp safe_numbers : : : <dependency>safe_numbers ;
 run ../test/test_limits.cpp safe_numbers : : : <dependency>safe_numbers ;
 run ../test/test_unsigned_addition.cpp safe_numbers : : : <dependency>safe_numbers ;
+run ../test/test_unsigned_literals.cpp safe_numbers : : : <dependency>safe_numbers ;
 
 run ../test/compile_integer_type_properties.cpp safe_numbers : : : <dependency>safe_numbers ;
 

test/Jamfile

@@ -59,6 +59,7 @@ run test_limits.cpp ;
 run limits_link_1.cpp limits_link_2.cpp limits_link_3.cpp ;
 compile-fail compile_fail_unsigned_construction_from_bool.cpp ;
 run test_unsigned_streaming.cpp ;
+run test_unsigned_literals.cpp ;
 
 # Compile Tests
 compile compile_tests/compile_test_unsigned_integers.cpp ;

test/test_unsigned_literals.cpp

@@ -0,0 +1,54 @@
+// Copyright 2025 Matt Borland
+// Distributed under the Boost Software License, Version 1.0.
+// https://www.boost.org/LICENSE_1_0.txt
+
+#include <boost/safe_numbers.hpp>
+#include <boost/core/lightweight_test.hpp>
+
+using namespace boost::safe_numbers;
+using namespace boost::safe_numbers::literals;
+
+template <typename T>
+void test();
+
+template <>
+void test<u8>()
+{
+    const auto good_value {42_u8};
+    BOOST_TEST_EQ(good_value, u8{42u});
+    BOOST_TEST_THROWS(18446744073709551615_u8, std::overflow_error);
+}
+
+template <>
+void test<u16>()
+{
+    const auto good_value {42_u16};
+    BOOST_TEST_EQ(good_value, u16{42u});
+    BOOST_TEST_THROWS(18446744073709551615_u16, std::overflow_error);
+}
+
+template <>
+void test<u32>()
+{
+    const auto good_value {42_u32};
+    BOOST_TEST_EQ(good_value, u32{42u});
+    BOOST_TEST_THROWS(18446744073709551615_u32, std::overflow_error);
+}
+
+template <>
+void test<u64>()
+{
+    const auto good_value {42_u64};
+    BOOST_TEST_EQ(good_value, u64{42u});
+    BOOST_TEST_NO_THROW(BOOST_TEST_EQ(18446744073709551615_u64, u64{18446744073709551615ULL}));
+}
+
+int main()
+{
+    test<u8>();
+    test<u16>();
+    test<u32>();
+    test<u64>();
+
+    return boost::report_errors();
+}