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