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Diffstat (limited to 'src/boost/libs/array/test/array0.cpp')
-rw-r--r-- | src/boost/libs/array/test/array0.cpp | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/src/boost/libs/array/test/array0.cpp b/src/boost/libs/array/test/array0.cpp new file mode 100644 index 00000000..af1d47bb --- /dev/null +++ b/src/boost/libs/array/test/array0.cpp @@ -0,0 +1,89 @@ +/* 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> + +#include <boost/core/lightweight_test_trait.hpp> + +namespace { + +template< class T > +void BadValue( const T & ) +{ + BOOST_TEST ( 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_TEST ( test_case.empty()); + BOOST_TEST ( const_test_case.empty()); + + BOOST_TEST ( test_case.size() == 0 ); + BOOST_TEST ( const_test_case.size() == 0 ); + + // Assert requirements of TR1 6.2.2.4 + BOOST_TEST ( test_case.begin() == test_case.end()); + BOOST_TEST ( test_case.cbegin() == test_case.cend()); + BOOST_TEST ( const_test_case.begin() == const_test_case.end()); + BOOST_TEST ( const_test_case.cbegin() == const_test_case.cend()); + + BOOST_TEST ( 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 & ) { + } +} + +} + +int main() +{ + RunTests< bool >(); + RunTests< void * >(); + RunTests< long double >(); + RunTests< std::string >(); + + return boost::report_errors(); +} |