504 lines
13 KiB
C++
504 lines
13 KiB
C++
// endian_operations_test.cpp --------------------------------------------------------//
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// Copyright Beman Dawes 2008
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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// See library home page at http://www.boost.org/libs/endian
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//--------------------------------------------------------------------------------------//
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// This test probes operator overloading, including interaction between
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// operand types.
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// See endian_test for tests of endianness correctness, size, and value.
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#include <boost/endian/detail/disable_warnings.hpp>
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#ifdef _MSC_VER
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# pragma warning( disable : 4242 ) // conversion ..., possible loss of data
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# pragma warning( disable : 4244 ) // conversion ..., possible loss of data
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# pragma warning( disable : 4018 ) // signed/unsigned mismatch
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# pragma warning( disable : 4365 ) // signed/unsigned mismatch
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# pragma warning( disable : 4389 ) // signed/unsigned mismatch
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#elif defined(__GNUC__)
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# pragma GCC diagnostic ignored "-Wconversion"
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#endif
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#include <boost/endian/arithmetic.hpp>
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#include <boost/type_traits/is_signed.hpp>
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#include <boost/core/lightweight_test.hpp>
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#include <boost/cstdint.hpp>
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#include <cassert>
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#include <iostream>
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#include <sstream>
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namespace be = boost::endian;
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template <class T>
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struct value_type
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{
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typedef typename T::value_type type;
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};
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template<> struct value_type<char> { typedef char type; };
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template<> struct value_type<unsigned char> { typedef unsigned char type; };
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template<> struct value_type<signed char> { typedef signed char type; };
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template<> struct value_type<short> { typedef short type; };
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template<> struct value_type<unsigned short> { typedef unsigned short type; };
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template<> struct value_type<int> { typedef int type; };
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template<> struct value_type<unsigned int> { typedef unsigned int type; };
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template<> struct value_type<long> { typedef long type; };
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template<> struct value_type<unsigned long> { typedef unsigned long type; };
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template<> struct value_type<long long> { typedef long long type; };
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template<> struct value_type<unsigned long long> { typedef unsigned long long type; };
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template <class T1, class T2>
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struct default_construct
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{
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static void test()
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{
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T1 o1;
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o1 = 1; // quiet warnings
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if (o1) return; // quiet warnings
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}
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};
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template <class T1, class T2>
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struct construct
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{
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static void test()
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{
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T2 o2(1);
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T1 o1(static_cast<T1>(o2));
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++o1; // quiet gcc unused variable warning
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}
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};
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template <class T1, class T2>
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struct initialize
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{
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static void test()
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{
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T1 o2(2);
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T1 o1 = o2;
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++o1; // quiet gcc unused variable warning
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}
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};
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template <class T1, class T2>
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struct assign
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{
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static void test()
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{
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T2 o2;
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o2 = 1;
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T1 o1;
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o1 = o2;
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if (o1) return; // quiet warnings
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}
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};
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template <class T1, class T2, bool SameSignedness>
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struct do_relational
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{
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static void test()
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{
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T1 o1(1);
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T2 o2(2);
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BOOST_TEST( !(o1 == o2) );
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BOOST_TEST( o1 != o2 );
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BOOST_TEST( o1 < o2 );
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BOOST_TEST( o1 <= o2 );
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BOOST_TEST( !(o1 > o2) );
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BOOST_TEST( !(o1 >= o2 ) );
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}
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};
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template <class T1, class T2>
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struct do_relational<T1, T2, false>
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{
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static void test()
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{
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}
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};
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template <class T1, class T2>
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struct relational
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{
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static void test()
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{
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do_relational<T1, T2,
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boost::is_signed<typename value_type<T1>::type>::value
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== boost::is_signed<typename value_type<T2>::type>::value
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>::test();
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// do_relational<T1, T2, true>::test();
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}
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};
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template <class T1, class T2>
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struct op_plus
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{
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static void test()
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{
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T1 o1(1);
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T2 o2(2);
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T1 o3;
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o3 = +o1;
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o3 = o1 + o2;
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o1 += o2;
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if (o3) return; // quiet warnings
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}
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};
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template <class T1, class T2>
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struct op_star
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{
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static void test()
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{
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T1 o1(1);
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T2 o2(2);
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T1 o3;
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o3 = o1 * o2;
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o1 *= o2;
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if (o3) return; // quiet warnings
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}
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};
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template <template<class, class> class Test, class T1>
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void op_test_aux()
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{
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Test<T1, char>::test();
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Test<T1, unsigned char>::test();
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Test<T1, signed char>::test();
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Test<T1, short>::test();
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Test<T1, unsigned short>::test();
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Test<T1, int>::test();
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Test<T1, unsigned int>::test();
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Test<T1, long>::test();
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Test<T1, unsigned long>::test();
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Test<T1, long long>::test();
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Test<T1, unsigned long long>::test();
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Test<T1, be::big_int16_at>::test();
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Test<T1, be::big_int32_at>::test();
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Test<T1, be::big_int64_at>::test();
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Test<T1, be::big_uint16_at>::test();
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Test<T1, be::big_uint32_at>::test();
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Test<T1, be::big_uint64_at>::test();
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Test<T1, be::little_int16_at>::test();
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Test<T1, be::little_int32_at>::test();
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Test<T1, be::little_int64_at>::test();
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Test<T1, be::little_uint16_at>::test();
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Test<T1, be::little_uint32_at>::test();
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Test<T1, be::little_uint64_at>::test();
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Test<T1, be::big_int8_t>::test();
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Test<T1, be::big_int16_t>::test();
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Test<T1, be::big_int24_t>::test();
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Test<T1, be::big_int32_t>::test();
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Test<T1, be::big_int40_t>::test();
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Test<T1, be::big_int48_t>::test();
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Test<T1, be::big_int56_t>::test();
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Test<T1, be::big_int64_t>::test();
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Test<T1, be::big_uint8_t>::test();
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Test<T1, be::big_uint16_t>::test();
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Test<T1, be::big_uint24_t>::test();
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Test<T1, be::big_uint32_t>::test();
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Test<T1, be::big_uint40_t>::test();
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Test<T1, be::big_uint64_t>::test();
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Test<T1, be::little_int16_t>::test();
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Test<T1, be::little_int24_t>::test();
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Test<T1, be::little_int32_t>::test();
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Test<T1, be::little_int64_t>::test();
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Test<T1, be::little_uint16_t>::test();
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Test<T1, be::little_uint32_t>::test();
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Test<T1, be::little_uint56_t>::test();
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Test<T1, be::little_uint64_t>::test();
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Test<T1, be::native_int16_t>::test();
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Test<T1, be::native_int24_t>::test();
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Test<T1, be::native_int32_t>::test();
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Test<T1, be::native_int64_t>::test();
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#ifdef BOOST_LONG_ENDIAN_TEST
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Test<T1, be::native_uint16_t>::test();
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Test<T1, be::native_uint24_t>::test();
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Test<T1, be::native_uint32_t>::test();
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Test<T1, be::native_uint48_t>::test();
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Test<T1, be::native_uint64_t>::test();
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Test<T1, be::big_uint48_t>::test();
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Test<T1, be::big_uint56_t>::test();
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Test<T1, be::little_int8_t>::test();
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Test<T1, be::little_int56_t>::test();
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Test<T1, be::little_int40_t>::test();
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Test<T1, be::little_int48_t>::test();
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Test<T1, be::little_uint8_t>::test();
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Test<T1, be::little_uint24_t>::test();
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Test<T1, be::little_uint40_t>::test();
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Test<T1, be::little_uint48_t>::test();
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Test<T1, be::native_int8_t>::test();
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Test<T1, be::native_int40_t>::test();
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Test<T1, be::native_int48_t>::test();
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Test<T1, be::native_int56_t>::test();
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Test<T1, be::native_uint8_t>::test();
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Test<T1, be::native_uint40_t>::test();
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Test<T1, be::native_uint56_t>::test();
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#endif
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}
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template <template<class, class> class Test>
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void op_test()
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{
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op_test_aux<Test, char>();
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op_test_aux<Test, unsigned char>();
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op_test_aux<Test, signed char>();
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op_test_aux<Test, short>();
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op_test_aux<Test, unsigned short>();
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op_test_aux<Test, int>();
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op_test_aux<Test, unsigned int>();
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op_test_aux<Test, long>();
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op_test_aux<Test, unsigned long>();
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op_test_aux<Test, long long>();
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op_test_aux<Test, unsigned long long>();
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op_test_aux<Test, be::big_int16_at>();
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op_test_aux<Test, be::big_int32_at>();
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op_test_aux<Test, be::big_int64_at>();
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op_test_aux<Test, be::little_int16_at>();
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op_test_aux<Test, be::little_int32_at>();
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op_test_aux<Test, be::little_int64_at>();
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#ifdef BOOST_LONG_ENDIAN_TEST
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op_test_aux<Test, be::big_int8_t>();
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op_test_aux<Test, be::big_int16_t>();
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op_test_aux<Test, be::big_int24_t>();
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op_test_aux<Test, be::big_int32_t>();
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op_test_aux<Test, be::big_int40_t>();
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op_test_aux<Test, be::big_int48_t>();
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op_test_aux<Test, be::big_int56_t>();
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op_test_aux<Test, be::big_int64_t>();
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op_test_aux<Test, be::big_uint8_t>();
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op_test_aux<Test, be::big_uint16_t>();
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op_test_aux<Test, be::big_uint24_t>();
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op_test_aux<Test, be::big_uint32_t>();
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op_test_aux<Test, be::big_uint40_t>();
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op_test_aux<Test, be::big_uint48_t>();
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op_test_aux<Test, be::big_uint56_t>();
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op_test_aux<Test, be::big_uint64_t>();
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op_test_aux<Test, be::little_int8_t>();
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op_test_aux<Test, be::little_int16_t>();
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op_test_aux<Test, be::little_int24_t>();
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op_test_aux<Test, be::little_int32_t>();
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op_test_aux<Test, be::little_int40_t>();
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op_test_aux<Test, be::little_int48_t>();
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op_test_aux<Test, be::little_int56_t>();
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op_test_aux<Test, be::little_int64_t>();
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op_test_aux<Test, be::little_uint8_t>();
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op_test_aux<Test, be::little_uint16_t>();
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op_test_aux<Test, be::little_uint24_t>();
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op_test_aux<Test, be::little_uint32_t>();
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op_test_aux<Test, be::little_uint40_t>();
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op_test_aux<Test, be::little_uint48_t>();
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op_test_aux<Test, be::little_uint56_t>();
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op_test_aux<Test, be::little_uint64_t>();
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op_test_aux<Test, be::native_int8_t>();
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op_test_aux<Test, be::native_int16_t>();
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op_test_aux<Test, be::native_int24_t>();
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op_test_aux<Test, be::native_int32_t>();
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op_test_aux<Test, be::native_int40_t>();
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op_test_aux<Test, be::native_int48_t>();
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op_test_aux<Test, be::native_int56_t>();
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op_test_aux<Test, be::native_int64_t>();
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op_test_aux<Test, be::native_uint8_t>();
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op_test_aux<Test, be::native_uint16_t>();
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op_test_aux<Test, be::native_uint24_t>();
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op_test_aux<Test, be::native_uint32_t>();
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op_test_aux<Test, be::native_uint40_t>();
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op_test_aux<Test, be::native_uint48_t>();
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op_test_aux<Test, be::native_uint56_t>();
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op_test_aux<Test, be::native_uint64_t>();
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#endif
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}
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// test_inserter_and_extractor -----------------------------------------------------//
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void test_inserter_and_extractor()
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{
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std::cout << "test inserter and extractor..." << std::endl;
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be::big_uint64_t bu64(0x010203040506070ULL);
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be::little_uint64_t lu64(0x010203040506070ULL);
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boost::uint64_t x;
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std::stringstream ss;
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ss << bu64;
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ss >> x;
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BOOST_TEST_EQ(x, 0x010203040506070ULL);
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ss.clear();
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ss << lu64;
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ss >> x;
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BOOST_TEST_EQ(x, 0x010203040506070ULL);
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ss.clear();
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ss << 0x010203040506070ULL;
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be::big_uint64_t bu64z(0);
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ss >> bu64z;
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BOOST_TEST_EQ(bu64z, bu64);
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ss.clear();
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ss << 0x010203040506070ULL;
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be::little_uint64_t lu64z(0);
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ss >> lu64z;
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BOOST_TEST_EQ(lu64z, lu64);
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std::cout << "test inserter and extractor complete" << std::endl;
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}
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void f_big_int32_ut(be::big_int32_t) {}
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// main ------------------------------------------------------------------------------//
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int cpp_main(int, char * [])
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{
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// make sure some simple things work
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be::big_int32_t o1(1);
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be::big_int32_t o2(2L);
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be::big_int32_t o3(3LL);
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be::big_int64_t o4(1);
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std::clog << "set up test values\n";
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be::big_int32_t big(12345);
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be::little_uint16_t little_u(10);
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be::big_int64_t result;
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// this is the use case that is so irritating that it caused the endian
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// constructors to be made non-explicit
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std::clog << "\nf(1234) where f(big_int32_t)\n";
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f_big_int32_ut(1234);
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std::clog << "\nresult = big\n";
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result = big;
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std::clog << "\nresult = +big\n";
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result = +big;
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std::clog << "\nresult = -big\n";
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result = -big;
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std::clog << "\n++big\n";
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++big;
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std::clog << "\nresult = big++\n";
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result = big++;
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std::clog << "\n--big\n";
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--big;
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std::clog << "\nbig--\n";
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big--;
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std::clog << "\nresult = big * big\n";
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result = big * big;
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std::clog << "\nresult = big * big\n";
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result = big * big;
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std::clog << "\nresult = big * little_u\n";
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result = big * little_u;
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std::clog << "\nbig *= little_u\n";
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big *= little_u;
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std::clog << "\nresult = little_u * big\n";
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result = little_u * big;
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std::clog << "\nresult = big * 5\n";
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result = big * 5;
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std::clog << "\nbig *= 5\n";
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big *= 5;
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std::clog << "\nresult = 5 * big\n";
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result = 5 * big;
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std::clog << "\nresult = little_u * 5\n";
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result = little_u * 5;
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std::clog << "\nresult = 5 * little_u\n";
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result = 5 * little_u;
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std::clog << "\nresult = 5 * 10\n";
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result = 5 * 10;
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std::clog << "\n";
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// test from Roland Schwarz that detected ambiguities; these ambiguities
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// were eliminated by BOOST_ENDIAN_MINIMAL_COVER_OPERATORS
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unsigned u;
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be::little_uint32_t u1;
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be::little_uint32_t u2;
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u = 9;
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u1 = 1;
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std::clog << "\nu2 = u1 + u\n";
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u2 = u1 + u;
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std::clog << "\n";
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// variations to detect ambiguities
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be::little_uint32_t u3 = u1 + 5;
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u3 = u1 + 5u;
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if (u1 == 5)
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{}
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if (u1 == 5u)
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{}
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u1 += 5;
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u1 += 5u;
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u2 = u1 + 5;
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u2 = u1 + 5u;
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// one more wrinkle
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be::little_uint16_t u4(3);
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u4 = 3;
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std::clog << "\nu2 = u1 + u4\n";
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u2 = u1 + u4;
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std::clog << "\n";
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test_inserter_and_extractor();
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// perform the indicated test on ~60*60 operand types
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op_test<default_construct>();
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op_test<construct>(); // includes copy construction
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op_test<initialize>();
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op_test<assign>();
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op_test<relational>();
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op_test<op_plus>();
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op_test<op_star>();
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|
|
return boost::report_errors();
|
|
}
|
|
|
|
int main( int argc, char* argv[] )
|
|
{
|
|
try
|
|
{
|
|
return cpp_main( argc, argv );
|
|
}
|
|
catch( std::exception const & x )
|
|
{
|
|
BOOST_ERROR( x.what() );
|
|
return boost::report_errors();
|
|
}
|
|
}
|