| // Copyright 2019 Peter Dimov |
| // |
| // Distributed under the Boost Software License, Version 1.0. |
| // http://www.boost.org/LICENSE_1_0.txt |
| |
| #include <boost/endian/conversion.hpp> |
| #include <boost/core/lightweight_test.hpp> |
| #include <boost/config.hpp> |
| #include <boost/cstdint.hpp> |
| #include <cstddef> |
| #include <ostream> |
| #include <iomanip> |
| |
| class byte_span |
| { |
| private: |
| |
| unsigned char const * p_; |
| std::size_t n_; |
| |
| public: |
| |
| byte_span( unsigned char const * p, std::size_t n ): p_( p ), n_( n ) |
| { |
| } |
| |
| template<std::size_t N> explicit byte_span( unsigned char const (&a)[ N ] ): p_( a ), n_( N ) |
| { |
| } |
| |
| bool operator==( byte_span const& r ) const |
| { |
| if( n_ != r.n_ ) return false; |
| |
| for( std::size_t i = 0; i < n_; ++i ) |
| { |
| if( p_[ i ] != r.p_[ i ] ) return false; |
| } |
| |
| return true; |
| } |
| |
| friend std::ostream& operator<<( std::ostream& os, byte_span s ) |
| { |
| if( s.n_ == 0 ) return os; |
| |
| os << std::hex << std::setfill( '0' ) << std::uppercase; |
| |
| os << std::setw( 2 ) << +s.p_[ 0 ]; |
| |
| for( std::size_t i = 1; i < s.n_; ++i ) |
| { |
| os << ':' << std::setw( 2 ) << +s.p_[ i ]; |
| } |
| |
| os << std::dec << std::setfill( ' ' ) << std::nouppercase;; |
| |
| return os; |
| } |
| }; |
| |
| template<class T> void test_1() |
| { |
| { |
| unsigned char v[] = { 0xAA, 0xAA }; |
| |
| boost::endian::endian_store<T, 1, boost::endian::order::little>( v, 0x01 ); |
| |
| unsigned char w[] = { 0x01, 0xAA }; |
| |
| BOOST_TEST_EQ( byte_span( v ), byte_span( w ) ); |
| } |
| |
| { |
| unsigned char v[] = { 0xAA, 0xAA }; |
| |
| boost::endian::endian_store<T, 1, boost::endian::order::big>( v, 0x01 ); |
| |
| unsigned char w[] = { 0x01, 0xAA }; |
| |
| BOOST_TEST_EQ( byte_span( v ), byte_span( w ) ); |
| } |
| } |
| |
| template<class T> void test_2() |
| { |
| { |
| unsigned char v[] = { 0xAA, 0xAA, 0xAA }; |
| |
| boost::endian::endian_store<T, 2, boost::endian::order::little>( v, 0x0102 ); |
| |
| unsigned char w[] = { 0x02, 0x01, 0xAA }; |
| |
| BOOST_TEST_EQ( byte_span( v ), byte_span( w ) ); |
| } |
| |
| { |
| unsigned char v[] = { 0xAA, 0xAA, 0xAA }; |
| |
| boost::endian::endian_store<T, 2, boost::endian::order::big>( v, 0x0102 ); |
| |
| unsigned char w[] = { 0x01, 0x02, 0xAA }; |
| |
| BOOST_TEST_EQ( byte_span( v ), byte_span( w ) ); |
| } |
| } |
| |
| template<class T> void test_3() |
| { |
| { |
| unsigned char v[] = { 0xAA, 0xAA, 0xAA, 0xAA }; |
| |
| boost::endian::endian_store<T, 3, boost::endian::order::little>( v, 0x010203 ); |
| |
| unsigned char w[] = { 0x03, 0x02, 0x01, 0xAA }; |
| |
| BOOST_TEST_EQ( byte_span( v ), byte_span( w ) ); |
| } |
| |
| { |
| unsigned char v[] = { 0xAA, 0xAA, 0xAA, 0xAA }; |
| |
| boost::endian::endian_store<T, 3, boost::endian::order::big>( v, 0x010203 ); |
| |
| unsigned char w[] = { 0x01, 0x02, 0x03, 0xAA }; |
| |
| BOOST_TEST_EQ( byte_span( v ), byte_span( w ) ); |
| } |
| } |
| |
| template<class T> void test_4() |
| { |
| { |
| unsigned char v[] = { 0xAA, 0xAA, 0xAA, 0xAA, 0xAA }; |
| |
| boost::endian::endian_store<T, 4, boost::endian::order::little>( v, 0x01020304 ); |
| |
| unsigned char w[] = { 0x04, 0x03, 0x02, 0x01, 0xAA }; |
| |
| BOOST_TEST_EQ( byte_span( v ), byte_span( w ) ); |
| } |
| |
| { |
| unsigned char v[] = { 0xAA, 0xAA, 0xAA, 0xAA, 0xAA }; |
| |
| boost::endian::endian_store<T, 4, boost::endian::order::big>( v, 0x01020304 ); |
| |
| unsigned char w[] = { 0x01, 0x02, 0x03, 0x04, 0xAA }; |
| |
| BOOST_TEST_EQ( byte_span( v ), byte_span( w ) ); |
| } |
| } |
| |
| template<class T> void test_5() |
| { |
| { |
| unsigned char v[] = { 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA }; |
| |
| boost::endian::endian_store<T, 5, boost::endian::order::little>( v, 0x0102030405 ); |
| |
| unsigned char w[] = { 0x05, 0x04, 0x03, 0x02, 0x01, 0xAA }; |
| |
| BOOST_TEST_EQ( byte_span( v ), byte_span( w ) ); |
| } |
| |
| { |
| unsigned char v[] = { 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA }; |
| |
| boost::endian::endian_store<T, 5, boost::endian::order::big>( v, 0x0102030405 ); |
| |
| unsigned char w[] = { 0x01, 0x02, 0x03, 0x04, 0x05, 0xAA }; |
| |
| BOOST_TEST_EQ( byte_span( v ), byte_span( w ) ); |
| } |
| } |
| |
| template<class T> void test_6() |
| { |
| { |
| unsigned char v[] = { 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA }; |
| |
| boost::endian::endian_store<T, 6, boost::endian::order::little>( v, 0x010203040506 ); |
| |
| unsigned char w[] = { 0x06, 0x05, 0x04, 0x03, 0x02, 0x01, 0xAA }; |
| |
| BOOST_TEST_EQ( byte_span( v ), byte_span( w ) ); |
| } |
| |
| { |
| unsigned char v[] = { 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA }; |
| |
| boost::endian::endian_store<T, 6, boost::endian::order::big>( v, 0x010203040506 ); |
| |
| unsigned char w[] = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0xAA }; |
| |
| BOOST_TEST_EQ( byte_span( v ), byte_span( w ) ); |
| } |
| } |
| |
| template<class T> void test_7() |
| { |
| { |
| unsigned char v[] = { 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA }; |
| |
| boost::endian::endian_store<T, 7, boost::endian::order::little>( v, 0x01020304050607 ); |
| |
| unsigned char w[] = { 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01, 0xAA }; |
| |
| BOOST_TEST_EQ( byte_span( v ), byte_span( w ) ); |
| } |
| |
| { |
| unsigned char v[] = { 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA }; |
| |
| boost::endian::endian_store<T, 7, boost::endian::order::big>( v, 0x01020304050607 ); |
| |
| unsigned char w[] = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0xAA }; |
| |
| BOOST_TEST_EQ( byte_span( v ), byte_span( w ) ); |
| } |
| } |
| |
| template<class T> void test_8() |
| { |
| { |
| unsigned char v[] = { 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA }; |
| |
| boost::endian::endian_store<T, 8, boost::endian::order::little>( v, 0x0102030405060708 ); |
| |
| unsigned char w[] = { 0x08, 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01, 0xAA }; |
| |
| BOOST_TEST_EQ( byte_span( v ), byte_span( w ) ); |
| } |
| |
| { |
| unsigned char v[] = { 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA }; |
| |
| boost::endian::endian_store<T, 8, boost::endian::order::big>( v, 0x0102030405060708 ); |
| |
| unsigned char w[] = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0xAA }; |
| |
| BOOST_TEST_EQ( byte_span( v ), byte_span( w ) ); |
| } |
| } |
| |
| int main() |
| { |
| // 1 |
| |
| test_1<boost::int8_t>(); |
| test_1<boost::uint8_t>(); |
| |
| test_1<boost::int16_t>(); |
| test_1<boost::uint16_t>(); |
| |
| test_1<boost::int32_t>(); |
| test_1<boost::uint32_t>(); |
| |
| test_1<boost::int64_t>(); |
| test_1<boost::uint64_t>(); |
| |
| // 2 |
| |
| test_2<boost::int16_t>(); |
| test_2<boost::uint16_t>(); |
| |
| test_2<boost::int32_t>(); |
| test_2<boost::uint32_t>(); |
| |
| test_2<boost::int64_t>(); |
| test_2<boost::uint64_t>(); |
| |
| // 3 |
| |
| test_3<boost::int32_t>(); |
| test_3<boost::uint32_t>(); |
| |
| test_3<boost::int64_t>(); |
| test_3<boost::uint64_t>(); |
| |
| // 4 |
| |
| test_4<boost::int32_t>(); |
| test_4<boost::uint32_t>(); |
| |
| test_4<boost::int64_t>(); |
| test_4<boost::uint64_t>(); |
| |
| // 5 |
| |
| test_5<boost::int64_t>(); |
| test_5<boost::uint64_t>(); |
| |
| // 6 |
| |
| test_6<boost::int64_t>(); |
| test_6<boost::uint64_t>(); |
| |
| // 7 |
| |
| test_7<boost::int64_t>(); |
| test_7<boost::uint64_t>(); |
| |
| // 8 |
| |
| test_8<boost::int64_t>(); |
| test_8<boost::uint64_t>(); |
| |
| return boost::report_errors(); |
| } |