| 1 | // Function library |
|---|---|
| 2 | |
| 3 | // Copyright (C) 2001-2003 Douglas Gregor |
| 4 | |
| 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 | // For more information, see http://www.boost.org/ |
| 10 | |
| 11 | |
| 12 | #include <boost/function.hpp> |
| 13 | #include <boost/core/lightweight_test.hpp> |
| 14 | #include <iostream> |
| 15 | #include <functional> |
| 16 | |
| 17 | struct Y { |
| 18 | Y(int y = 0) : y_(y) {} |
| 19 | bool operator==(const Y& rhs) const { return y_ == rhs.y_; } |
| 20 | private: |
| 21 | int y_; |
| 22 | }; |
| 23 | |
| 24 | struct X { |
| 25 | int foo(int); |
| 26 | Y& foo2(Y&) const; |
| 27 | }; |
| 28 | int X::foo(int x) { return -x; } |
| 29 | Y& X::foo2(Y& x) const { return x; } |
| 30 | |
| 31 | int main() |
| 32 | { |
| 33 | boost::function2<int, X*, int> f; |
| 34 | boost::function2<Y&, X*, Y&> f2; |
| 35 | Y y1; |
| 36 | |
| 37 | f = &X::foo; |
| 38 | f2 = &X::foo2; |
| 39 | |
| 40 | X x; |
| 41 | BOOST_TEST(f(&x, 5) == -5); |
| 42 | BOOST_TEST(f2(&x, boost::ref(y1)) == y1); |
| 43 | |
| 44 | return ::boost::report_errors(); |
| 45 | } |
| 46 |