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1 
2 // Copyright (C) 2009-2012 Lorenzo Caminiti
3 // Distributed under the Boost Software License, Version 1.0
4 // (see accompanying file LICENSE_1_0.txt or a copy at
5 // http://www.boost.org/LICENSE_1_0.txt)
6 // Home at http://www.boost.org/libs/local_function
7 
8 #include <boost/config.hpp>
9 #ifdef BOOST_NO_CXX11_VARIADIC_MACROS
10 #   error "variadic macros required"
11 #else
12 
13 #include <boost/local_function.hpp>
14 #include <boost/typeof/typeof.hpp>
15 #include BOOST_TYPEOF_INCREMENT_REGISTRATION_GROUP()
16 #include <boost/detail/lightweight_test.hpp>
17 
18 struct point {
19     int x;
20     int y;
21 };
BOOST_TYPEOF_REGISTER_TYPE(point)22 BOOST_TYPEOF_REGISTER_TYPE(point) // Register for `NAME` below.
23 
24 int main(void) {
25     //[operator_error
26     bool BOOST_LOCAL_FUNCTION(const point& p, const point& q) {
27         return p.x == q.x && p.y == q.y;
28     } BOOST_LOCAL_FUNCTION_NAME(operator==) // Error: Cannot use `operator...`.
29     //]
30 
31     point a; a.x = 1; a.y = 2;
32     point b = a;
33     BOOST_TEST(a == b);
34     return boost::report_errors();
35 }
36 
37 #endif // VARIADIC_MACROS
38 
39