1 // ------------------------------------------------------------------------------
2 // format_test_enum.cpp : test format use with enums
3 // ------------------------------------------------------------------------------
4
5 // Copyright Steven Watanabe 2009.
6 //
7 // Distributed under the Boost Software License, Version 1.0. (See
8 // accompanying file LICENSE_1_0.txt or copy at
9 // http://www.boost.org/LICENSE_1_0.txt)
10
11 // See http://www.boost.org/libs/format for library home page
12
13 // ------------------------------------------------------------------------------
14
15 #include <boost/detail/lightweight_test.hpp>
16 #include <boost/format.hpp>
17
18 enum enum_plain { PLAIN };
19 enum { ANONYMOUS };
20 enum enum_overloaded { OVERLOADED };
21 typedef enum { OVERLOADED_TYPEDEF } enum_overloaded_typedef;
22
operator <<(std::ostream & os,enum_overloaded)23 std::ostream& operator<<(std::ostream& os, enum_overloaded) {
24 os << "overloaded";
25 return(os);
26 }
27
operator <<(std::ostream & os,enum_overloaded_typedef)28 std::ostream& operator<<(std::ostream& os, enum_overloaded_typedef) {
29 os << "overloaded";
30 return(os);
31 }
32
main(int,char * [])33 int main(int, char*[]) {
34 // in this case, we should implicitly convert to int
35 BOOST_TEST_EQ((boost::format("%d") % PLAIN).str(), "0");
36 BOOST_TEST_EQ((boost::format("%d") % ANONYMOUS).str(), "0");
37
38 // but here we need to use the overloaded operator
39 BOOST_TEST_EQ((boost::format("%s") % OVERLOADED).str(), "overloaded");
40 BOOST_TEST_EQ((boost::format("%s") % OVERLOADED_TYPEDEF).str(), "overloaded");
41
42 return boost::report_errors();
43 }
44