| // Boost.Signals2 library |
| |
| // Copyright Douglas Gregor 2001-2006. |
| // Copyright Frank Mori Hess 2009. |
| // Use, modification and |
| // distribution is subject to 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) |
| |
| // For more information, see http://www.boost.org |
| |
| #include <boost/test/minimal.hpp> |
| #include <boost/signals2/signal.hpp> |
| #include <boost/signals2/trackable.hpp> |
| #include <boost/bind.hpp> |
| #include <boost/ref.hpp> |
| #include <boost/weak_ptr.hpp> |
| |
| struct short_lived : public boost::signals2::trackable { |
| ~short_lived() {} |
| }; |
| |
| struct swallow { |
| typedef int result_type; |
| template<typename T> int operator()(const T*, int i) { return i; } |
| template<typename T> int operator()(T &, int i) { return i; } |
| template<typename T> int operator()(boost::weak_ptr<T>, int i) { return i; } |
| }; |
| |
| template<typename T> |
| struct max_or_default { |
| typedef T result_type; |
| |
| template<typename InputIterator> |
| T operator()(InputIterator first, InputIterator last) const |
| { |
| if (first == last) |
| return T(); |
| |
| T max = *first++; |
| for (; first != last; ++first) |
| max = (*first > max)? *first : max; |
| |
| return max; |
| } |
| }; |
| |
| int test_main(int, char*[]) |
| { |
| typedef boost::signals2::signal<int (int), max_or_default<int> > sig_type; |
| sig_type s1; |
| |
| // Test auto-disconnection |
| BOOST_CHECK(s1(5) == 0); |
| { |
| short_lived shorty; |
| s1.connect(boost::bind<int>(swallow(), &shorty, _1)); |
| BOOST_CHECK(s1(5) == 5); |
| } |
| BOOST_CHECK(s1(5) == 0); |
| // Test auto-disconnection of trackable inside reference_wrapper |
| { |
| short_lived shorty; |
| s1.connect(boost::bind<int>(swallow(), boost::ref(shorty), _1)); |
| BOOST_CHECK(s1(5) == 5); |
| } |
| BOOST_CHECK(s1(5) == 0); |
| |
| // Test multiple arg slot constructor |
| { |
| short_lived shorty; |
| s1.connect(sig_type::slot_type(swallow(), &shorty, _1)); |
| BOOST_CHECK(s1(5) == 5); |
| } |
| BOOST_CHECK(s1(5) == 0); |
| |
| // Test auto-disconnection of slot before signal connection |
| { |
| short_lived* shorty = new short_lived(); |
| |
| sig_type::slot_type slot(boost::bind<int>(swallow(), shorty, _1)); |
| delete shorty; |
| |
| BOOST_CHECK(s1(5) == 0); |
| } |
| return 0; |
| } |