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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:45:59 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:45:59 +0000 |
commit | 19fcec84d8d7d21e796c7624e521b60d28ee21ed (patch) | |
tree | 42d26aa27d1e3f7c0b8bd3fd14e7d7082f5008dc /src/boost/libs/thread/test/test_8600.cpp | |
parent | Initial commit. (diff) | |
download | ceph-upstream.tar.xz ceph-upstream.zip |
Adding upstream version 16.2.11+ds.upstream/16.2.11+dsupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/boost/libs/thread/test/test_8600.cpp')
-rw-r--r-- | src/boost/libs/thread/test/test_8600.cpp | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/src/boost/libs/thread/test/test_8600.cpp b/src/boost/libs/thread/test/test_8600.cpp new file mode 100644 index 000000000..224e41fa6 --- /dev/null +++ b/src/boost/libs/thread/test/test_8600.cpp @@ -0,0 +1,140 @@ +// Copyright (C) 2013 Vicente Botet +// +// Distributed under the Boost Software License, Version 1.0. (See accompanying +// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +#include <boost/assert.hpp> +#include <boost/static_assert.hpp> +#include <vector> +#include <utility> +#include <type_traits> +#if 1 + +struct B { + int v; + B(int i) : v(i) {} +}; + +struct D: B { + D(int i) : B(i) {} +}; + +void fb(B const&) {} +void fd(D const&) {} + +BOOST_STATIC_ASSERT(sizeof(B)==sizeof(D)); + +template <class T, class Allocator=std::allocator<T> > +class new_vector; +template <class T, class Allocator> +class new_vector : public std::vector<T,Allocator> +{ + typedef std::vector<T,Allocator> base_type; +public: + new_vector() : base_type() {} + new_vector(unsigned s) : base_type(s) {} +}; + +template <class Allocator > +class new_vector<bool, Allocator> +{ + //std::vector<char,typename Allocator::template rebind<char>::other > v; + int i; +public: +}; + +template <class T, class A> +typename std::enable_if<!std::is_same<T, bool>::value, + new_vector<T,A>& +>::type +new_vector_cast(std::vector<T,A> & v) { + return reinterpret_cast<new_vector<T,A>&>(v); +} + +BOOST_STATIC_ASSERT(sizeof(std::vector<int>)==sizeof(new_vector<int>)); +BOOST_STATIC_ASSERT(sizeof(std::vector<bool>)!=sizeof(new_vector<bool>)); + +void fb(std::vector<int> const&) {} +void fd(new_vector<int> const&) {} + +int main() { + { + std::vector<int> b(1); + b[0] = 1; + new_vector<int> d = new_vector_cast(b); + BOOST_ASSERT(b[0] == d[0]); + } + { + //std::vector<bool> b; + //new_vector<bool> d = new_vector_cast(b); // compile fail + } + { + std::vector<int> b(1); + b[0] = 1; + fd(new_vector_cast(b)); + } + { + new_vector<int> d(1); + d[0] = 1; + std::vector<int> b = d; + BOOST_ASSERT(b[0] == d[0]); + } + { + //new_vector<bool> d; + //std::vector<bool> b = d; // compile fail + } + { + new_vector<int> d(1); + d[0] = 1; + fd(d); + } + return 0; +} + + +#else +int main() { + { + B b(1); + D d = reinterpret_cast<D&>(b); + BOOST_ASSERT(b.v == d.v); + } + { + B b(1); + fd(reinterpret_cast<D&>(b)); + } + { + D d(2); + B b = d; + BOOST_ASSERT(b.v == d.v); + } + { + D d(2); + fd(d); + } + return 0; +} + +#define BOOST_THREAD_VERSION 4 + +#include <iostream> +#include <boost/thread.hpp> + +int calculate_the_answer_to_life_the_universe_and_everything() +{ +return 42; +} + +int main() +{ +boost::packaged_task<int()> pt(calculate_the_answer_to_life_the_universe_and_everything); +boost::shared_future<int> fi1 = boost::shared_future<int>(pt.get_future()); +boost::shared_future<int> fi2 = fi1; + +boost::thread task(boost::move(pt)); // launch task on a thread + +boost::wait_for_any(fi1, fi2); +std::cout << "Wait for any returned\n"; +return (0); +} +#endif |