| // (C) Copyright Gennadiy Rozental 2001-2008. |
| // Distributed under the Boost Software License, Version 1.0. |
| // (See accompanying file LICENSE_1_0.txt or copy at |
| // http://www.boost.org/LICENSE_1_0.txt) |
| |
| // See http://www.boost.org/libs/test for the library home page. |
| |
| // Boost.Runtime.Param |
| #include <boost/test/utils/runtime/env/variable.hpp> |
| #include <boost/test/utils/basic_cstring/io.hpp> |
| |
| namespace rt = boost::runtime; |
| namespace env = boost::runtime::env; |
| |
| // STL |
| #include <iostream> |
| |
| void |
| named_integer( rt::cstring source, boost::optional<int>& value ) |
| { |
| if( source == "one" ) |
| value = 1; |
| else if( source == "two" ) |
| value = 2; |
| else |
| value = 0; |
| } |
| |
| env::variable<int> NUMBER1( "NUMBER1", env::interpreter = &named_integer ); |
| |
| int main() { |
| |
| std::cout << NUMBER1 << std::endl; |
| |
| std::cout << env::var<int>( "NUMBER2", ( env::interpreter = &named_integer, env::default_value = 10 )) |
| << std::endl; |
| |
| return 0; |
| } |
| |
| // EOF |
| |