| 1 | // Copyright 2019, 2020 Peter Dimov |
|---|---|
| 2 | // Distributed under the Boost Software License, Version 1.0. |
| 3 | // http://www.boost.org/LICENSE_1_0.txt |
| 4 | |
| 5 | #include <boost/endian/conversion.hpp> |
| 6 | #include <boost/core/lightweight_test.hpp> |
| 7 | #include <boost/type_traits/enable_if.hpp> |
| 8 | #include <boost/type_traits/is_same.hpp> |
| 9 | #include <boost/cstdint.hpp> |
| 10 | |
| 11 | namespace N |
| 12 | { |
| 13 | |
| 14 | struct X |
| 15 | { |
| 16 | boost::uint32_t m; |
| 17 | }; |
| 18 | |
| 19 | template<class T> typename boost::enable_if_<boost::is_same<T, X>::value, T>::type endian_reverse( T x ) |
| 20 | { |
| 21 | using boost::endian::endian_reverse; |
| 22 | |
| 23 | X r = { endian_reverse( x.m ) }; |
| 24 | return r; |
| 25 | } |
| 26 | |
| 27 | } // namespace N |
| 28 | |
| 29 | int main() |
| 30 | { |
| 31 | using namespace boost::endian; |
| 32 | |
| 33 | N::X x1 = { .m: 0x01020304 }; |
| 34 | N::X x2 = endian_reverse( x: x1 ); |
| 35 | |
| 36 | BOOST_TEST_EQ( x2.m, 0x04030201 ); |
| 37 | |
| 38 | return boost::report_errors(); |
| 39 | } |
| 40 |