| 1 | /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8 |
|---|---|
| 2 | // test_strong_typedef.cpp |
| 3 | |
| 4 | // (C) Copyright 2016 Ashish Sadanandan |
| 5 | // Use, modification and distribution is subject to the Boost Software |
| 6 | // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
| 7 | // http://www.boost.org/LICENSE_1_0.txt) |
| 8 | |
| 9 | // should pass compilation |
| 10 | #include <stdlib.h> // EXIT_SUCCESS |
| 11 | |
| 12 | #include <boost/config.hpp> |
| 13 | #include <boost/serialization/strong_typedef.hpp> |
| 14 | #include <boost/static_assert.hpp> |
| 15 | |
| 16 | #include <boost/type_traits/has_nothrow_assign.hpp> |
| 17 | #include <boost/type_traits/has_nothrow_constructor.hpp> |
| 18 | #include <boost/type_traits/has_nothrow_copy.hpp> |
| 19 | |
| 20 | /////////////////////////////////////////////////////////////////////// |
| 21 | // Define a strong typedef for int. |
| 22 | // The new type should be nothrow constructible and assignable. |
| 23 | |
| 24 | BOOST_STRONG_TYPEDEF(int, strong_int) |
| 25 | |
| 26 | #ifndef BOOST_HAS_NOTHROW_CONSTRUCTOR |
| 27 | BOOST_STATIC_ASSERT(boost::has_nothrow_default_constructor<strong_int>::value); |
| 28 | BOOST_STATIC_ASSERT(boost::has_nothrow_copy_constructor<strong_int>::value); |
| 29 | BOOST_STATIC_ASSERT(boost::has_nothrow_assign<strong_int>::value); |
| 30 | #endif |
| 31 | |
| 32 | /////////////////////////////////////////////////////////////////////// |
| 33 | // strong_int can now be placed in another type, which can also be |
| 34 | // nothrow constructible and assignable. |
| 35 | |
| 36 | struct type1 |
| 37 | { |
| 38 | long some_long; |
| 39 | strong_int sint; |
| 40 | }; |
| 41 | |
| 42 | #ifndef BOOST_HAS_NOTHROW_CONSTRUCTOR |
| 43 | BOOST_STATIC_ASSERT(boost::has_nothrow_default_constructor<type1>::value); |
| 44 | BOOST_STATIC_ASSERT(boost::has_nothrow_copy_constructor<type1>::value); |
| 45 | BOOST_STATIC_ASSERT(boost::has_nothrow_assign<type1>::value); |
| 46 | #endif |
| 47 | |
| 48 | /////////////////////////////////////////////////////////////////////// |
| 49 | // Now define a type that throws, and a strong_typedef for it |
| 50 | // The strong_typedef should also not have nothrow construction/assign. |
| 51 | |
| 52 | struct not_noexcept |
| 53 | { |
| 54 | not_noexcept() {} |
| 55 | not_noexcept(not_noexcept const&) {} |
| 56 | not_noexcept& operator=(not_noexcept const&) {return *this;} |
| 57 | bool operator==(not_noexcept const&) const {return false;} |
| 58 | bool operator<(not_noexcept const&) const {return false;} |
| 59 | }; |
| 60 | BOOST_STRONG_TYPEDEF(not_noexcept, strong_not_noexcept) |
| 61 | |
| 62 | #ifndef BOOST_HAS_NOTHROW_CONSTRUCTOR |
| 63 | BOOST_STATIC_ASSERT(! boost::has_nothrow_default_constructor<strong_not_noexcept>::value); |
| 64 | BOOST_STATIC_ASSERT(! boost::has_nothrow_copy_constructor<strong_not_noexcept>::value); |
| 65 | BOOST_STATIC_ASSERT(! boost::has_nothrow_assign<strong_not_noexcept>::value); |
| 66 | #endif |
| 67 | |
| 68 | int main() |
| 69 | { |
| 70 | return EXIT_SUCCESS; |
| 71 | } |
| 72 |