| /* tests for using class array<> specialization for size 0 |
| * (C) Copyright Alisdair Meredith 2006. |
| * 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) |
| */ |
| |
| #include <string> |
| #include <iostream> |
| #include <boost/array.hpp> |
| |
| #define BOOST_TEST_MAIN |
| #include <boost/test/unit_test.hpp> |
| |
| namespace { |
| |
| template< class T > |
| void BadValue( const T & ) |
| { |
| BOOST_CHECK ( false ); |
| } |
| |
| template< class T > |
| void RunTests() |
| { |
| typedef boost::array< T, 0 > test_type; |
| |
| // Test value and aggegrate initialization |
| test_type test_case = {}; |
| const boost::array< T, 0 > const_test_case = test_type(); |
| |
| test_case.fill ( T() ); |
| |
| // front/back and operator[] must compile, but calling them is undefined |
| // Likewise, all tests below should evaluate to false, avoiding undefined behaviour |
| BOOST_CHECK ( test_case.empty()); |
| BOOST_CHECK ( const_test_case.empty()); |
| |
| BOOST_CHECK ( test_case.size() == 0 ); |
| BOOST_CHECK ( const_test_case.size() == 0 ); |
| |
| // Assert requirements of TR1 6.2.2.4 |
| BOOST_CHECK ( test_case.begin() == test_case.end()); |
| BOOST_CHECK ( test_case.cbegin() == test_case.cend()); |
| BOOST_CHECK ( const_test_case.begin() == const_test_case.end()); |
| BOOST_CHECK ( const_test_case.cbegin() == const_test_case.cend()); |
| |
| BOOST_CHECK ( test_case.begin() != const_test_case.begin() ); |
| if( test_case.data() == const_test_case.data() ) { |
| // Value of data is unspecified in TR1, so no requirement this test pass or fail |
| // However, it must compile! |
| } |
| |
| // Check can safely use all iterator types with std algorithms |
| std::for_each( test_case.begin(), test_case.end(), BadValue< T > ); |
| std::for_each( test_case.rbegin(), test_case.rend(), BadValue< T > ); |
| std::for_each( test_case.cbegin(), test_case.cend(), BadValue< T > ); |
| std::for_each( const_test_case.begin(), const_test_case.end(), BadValue< T > ); |
| std::for_each( const_test_case.rbegin(), const_test_case.rend(), BadValue< T > ); |
| std::for_each( const_test_case.cbegin(), const_test_case.cend(), BadValue< T > ); |
| |
| // Check swap is well formed |
| std::swap( test_case, test_case ); |
| |
| // Check assignment operator and overloads are well formed |
| test_case = const_test_case; |
| |
| // Confirm at() throws the std lib defined exception |
| try { |
| BadValue( test_case.at( 0 )); |
| } catch ( const std::out_of_range & ) { |
| } |
| |
| try { |
| BadValue( const_test_case.at( 0 ) ); |
| } catch ( const std::out_of_range & ) { |
| } |
| } |
| |
| } |
| |
| BOOST_AUTO_TEST_CASE( test_main ) |
| { |
| RunTests< bool >(); |
| RunTests< void * >(); |
| RunTests< long double >(); |
| RunTests< std::string >(); |
| } |
| |