1 // Copyright (c) 2009-2016 Vladimir Batov.
2 // Use, modification and distribution are subject to the Boost Software License,
3 // Version 1.0. See http://www.boost.org/LICENSE_1_0.txt.
4
5 #include "./test.hpp"
6
7 #if defined(BOOST_CONVERT_IS_NOT_SUPPORTED)
main(int,char const * [])8 int main(int, char const* []) { return 0; }
9 #else
10
11 #include <boost/convert.hpp>
12 #include <boost/detail/lightweight_test.hpp>
13
14 static
15 bool
my_cypher(std::string const & value_in,boost::optional<std::string> & value_out)16 my_cypher(std::string const& value_in, boost::optional<std::string>& value_out)
17 {
18 size_t const cypher = 'A' - '1';
19
20 value_out = value_in;
21
22 for (std::string::iterator it = value_out->begin(); it != value_out->end(); ++it)
23 (*it < 'A') ? (*it += cypher) : (*it -= cypher);
24
25 return true;
26 }
27
28 int
main(int,char const * [])29 main(int, char const* [])
30 {
31 ////////////////////////////////////////////////////////////////////////////
32 // Testing custom converter.
33 ////////////////////////////////////////////////////////////////////////////
34
35 std::string encrypted = boost::convert<std::string>("ABC", my_cypher).value();
36 std::string decrypted = boost::convert<std::string>(encrypted, my_cypher).value();
37
38 BOOST_TEST(encrypted == "123");
39 BOOST_TEST(decrypted == "ABC");
40
41 return boost::report_errors();
42 }
43
44 #endif
45