| |
| // Copyright 2018 Peter Dimov. |
| // Distributed under the Boost Software License, Version 1.0. |
| |
| #include <boost/function.hpp> |
| #include <boost/core/lightweight_test.hpp> |
| |
| // |
| |
| void call_fn_1( boost::function<void()> const & fn ); |
| void call_fn_2( boost::function<void(int)> const & fn ); |
| void call_fn_3( boost::function<void(int, int)> const & fn ); |
| |
| void call_fn_4( boost::function0<void> const & fn ); |
| void call_fn_5( boost::function1<void, int> const & fn ); |
| void call_fn_6( boost::function2<void, int, int> const & fn ); |
| |
| // |
| |
| static int v; |
| |
| void f0() |
| { |
| v = -1; |
| } |
| |
| void f1( int x ) |
| { |
| v = x; |
| } |
| |
| void f2( int x, int y ) |
| { |
| v = x + y; |
| } |
| |
| int main() |
| { |
| v = 0; call_fn_1( f0 ); BOOST_TEST_EQ( v, -1 ); |
| v = 0; call_fn_2( f1 ); BOOST_TEST_EQ( v, 1 ); |
| v = 0; call_fn_3( f2 ); BOOST_TEST_EQ( v, 3 ); |
| |
| v = 0; call_fn_4( f0 ); BOOST_TEST_EQ( v, -1 ); |
| v = 0; call_fn_5( f1 ); BOOST_TEST_EQ( v, 1 ); |
| v = 0; call_fn_6( f2 ); BOOST_TEST_EQ( v, 3 ); |
| |
| return boost::report_errors(); |
| } |