| 1 | /* |
|---|---|
| 2 | Copyright 2019 Glen Joseph Fernandes |
| 3 | (glenjofe@gmail.com) |
| 4 | |
| 5 | Distributed under the Boost Software License, Version 1.0. |
| 6 | (http://www.boost.org/LICENSE_1_0.txt) |
| 7 | */ |
| 8 | #include <cstddef> |
| 9 | #ifdef __cpp_lib_byte |
| 10 | #include <boost/core/span.hpp> |
| 11 | #include <boost/core/lightweight_test.hpp> |
| 12 | |
| 13 | void test_dynamic() |
| 14 | { |
| 15 | int a[4]; |
| 16 | boost::span<std::byte> s = |
| 17 | boost::as_writable_bytes(s: boost::span<int>(&a[0], 4)); |
| 18 | BOOST_TEST_EQ(s.data(), reinterpret_cast<std::byte*>(&a[0])); |
| 19 | BOOST_TEST_EQ(s.size(), sizeof(int) * 4); |
| 20 | } |
| 21 | |
| 22 | void test_static() |
| 23 | { |
| 24 | int a[4]; |
| 25 | boost::span<std::byte, sizeof(int) * 4> s = |
| 26 | boost::as_writable_bytes(s: boost::span<int, 4>(&a[0], 4)); |
| 27 | BOOST_TEST_EQ(s.data(), reinterpret_cast<std::byte*>(&a[0])); |
| 28 | BOOST_TEST_EQ(s.size(), sizeof(int) * 4); |
| 29 | } |
| 30 | |
| 31 | int main() |
| 32 | { |
| 33 | test_dynamic(); |
| 34 | test_static(); |
| 35 | return boost::report_errors(); |
| 36 | } |
| 37 | #else |
| 38 | int main() |
| 39 | { |
| 40 | return 0; |
| 41 | } |
| 42 | #endif |
| 43 |