| // (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> |
| |
| env::variable<> TEMP( "TEMP" ); |
| |
| env::variable<int> ProcNumber( "NUMBER_OF_PROCESSORS" ); |
| |
| env::variable<int> abc( "abccccc" ); |
| |
| void print_int( env::variable_base const& var ) { |
| std::cout << var.name() << (var.has_value() ? " is present: " : " is not present: " ) << var.value<int>() << std::endl; |
| } |
| |
| int main() { |
| std::cout << TEMP << '\n' << ProcNumber << std::endl; |
| |
| rt::cstring val = TEMP.value(); |
| std::cout << " val=" << val << std::endl; |
| |
| int n = ProcNumber.value(); |
| |
| std::cout << " n=" << n << std::endl; |
| |
| boost::optional<int> opt_n; |
| ProcNumber.value( opt_n ); |
| |
| std::cout << " n=" << opt_n << std::endl; |
| |
| print_int( ProcNumber ); |
| |
| if( ProcNumber == 1 ) |
| std::cout << "ProcNumber = 1\n"; |
| |
| if( 2 != ProcNumber ) |
| std::cout << "ProcNumber != 2\n"; |
| |
| if( abc != 1 ) |
| std::cout << "abc != 1\n"; |
| |
| abc = 1; |
| |
| if( abc == 1 ) |
| std::cout << "abc == 1\n"; |
| |
| TEMP = "../tmp"; |
| |
| std::cout << TEMP << std::endl; |
| |
| return 0; |
| } |
| |
| // EOF |
| |