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provide std::begin/std::end overloads for pull_coroutine

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This commit is contained in:
Oliver Kowalke 2020-07-02 08:59:04 +02:00
parent 4569842e94
commit 1a97defc28
3 changed files with 30 additions and 17 deletions
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24
example/same_fringe.cpp
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@ -103,8 +103,8 @@ int main()
traverse(left_d,out); traverse(left_d,out);
}); });
std::cout << "left tree from d:\n"; std::cout << "left tree from d:\n";
std::copy(begin(left_d_reader), std::copy(std::begin(left_d_reader),
end(left_d_reader), std::end(left_d_reader),
std::ostream_iterator<std::string>(std::cout, " ")); std::ostream_iterator<std::string>(std::cout, " "));
std::cout << std::endl; std::cout << std::endl;
@ -113,8 +113,8 @@ int main()
traverse(right_b,out); traverse(right_b,out);
}); });
std::cout << "right tree from b:\n"; std::cout << "right tree from b:\n";
std::copy(begin(right_b_reader), std::copy(std::begin(right_b_reader),
end(right_b_reader), std::end(right_b_reader),
std::ostream_iterator<std::string>(std::cout, " ")); std::ostream_iterator<std::string>(std::cout, " "));
std::cout << std::endl; std::cout << std::endl;
@ -123,8 +123,8 @@ int main()
traverse(right_x,out); traverse(right_x,out);
}); });
std::cout << "right tree from x:\n"; std::cout << "right tree from x:\n";
std::copy(begin(right_x_reader), std::copy(std::begin(right_x_reader),
end(right_x_reader), std::end(right_x_reader),
std::ostream_iterator<std::string>(std::cout, " ")); std::ostream_iterator<std::string>(std::cout, " "));
std::cout << std::endl; std::cout << std::endl;
} }
@ -146,9 +146,9 @@ int main()
std::cout << "left tree from d == right tree from b? " std::cout << "left tree from d == right tree from b? "
<< std::boolalpha << std::boolalpha
<< std::equal(begin(left_d_reader), << std::equal(std::begin(left_d_reader),
end(left_d_reader), std::end(left_d_reader),
begin(right_b_reader)) std::begin(right_b_reader))
<< std::endl; << std::endl;
} }
} }
@ -169,9 +169,9 @@ int main()
std::cout << "left tree from d == right tree from x? " std::cout << "left tree from d == right tree from x? "
<< std::boolalpha << std::boolalpha
<< std::equal(begin(left_d_reader), << std::equal(std::begin(left_d_reader),
end(left_d_reader), std::end(left_d_reader),
begin(right_x_reader)) std::begin(right_x_reader))
<< std::endl; << std::endl;
} }
} }

16
include/boost/coroutine2/detail/pull_coroutine.hpp
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@ -294,6 +294,22 @@ end( pull_coroutine< T > &) {
}}} }}}
namespace std {
template< typename T >
typename boost::coroutines2::detail::pull_coroutine< T >::iterator
begin( boost::coroutines2::detail::pull_coroutine< T > & c) {
return boost::coroutines2::detail::begin( c);
}
template< typename T >
typename boost::coroutines2::detail::pull_coroutine< T >::iterator
end( boost::coroutines2::detail::pull_coroutine< T > & c) {
return boost::coroutines2::detail::end( c);
}
}
#ifdef BOOST_HAS_ABI_HEADERS #ifdef BOOST_HAS_ABI_HEADERS
# include BOOST_ABI_SUFFIX # include BOOST_ABI_SUFFIX
#endif #endif

7
test/test_coroutine.cpp
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@ -518,14 +518,11 @@ void test_exceptions()
void test_input_iterator() void test_input_iterator()
{ {
{ {
using std::begin;
using std::end;
std::vector< int > vec; std::vector< int > vec;
coro::coroutine< int >::pull_type coro( f16); coro::coroutine< int >::pull_type coro( f16);
coro::coroutine< int >::pull_type::iterator e = end( coro); coro::coroutine< int >::pull_type::iterator e = std::end( coro);
for ( for (
coro::coroutine< int >::pull_type::iterator i = begin( coro); coro::coroutine< int >::pull_type::iterator i = std::begin( coro);
i != e; ++i) i != e; ++i)
{ vec.push_back( * i); } { vec.push_back( * i); }
BOOST_CHECK_EQUAL( ( std::size_t)5, vec.size() ); BOOST_CHECK_EQUAL( ( std::size_t)5, vec.size() );