forked from boostorg/endian
Add convenience store functions
This commit is contained in:
Peter Dimov
@ -534,6 +534,160 @@ inline boost::uint64_t load_big_u64( unsigned char const * p ) BOOST_NOEXCEPT
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return boost::endian::endian_load<boost::uint64_t, 8, order::big>( p );
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}
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// store 16
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inline void store_little_s16( unsigned char * p, boost::int16_t v )
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{
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boost::endian::endian_store<boost::int16_t, 2, order::little>( p, v );
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}
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inline void store_little_u16( unsigned char * p, boost::uint16_t v )
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{
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boost::endian::endian_store<boost::uint16_t, 2, order::little>( p, v );
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}
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inline void store_big_s16( unsigned char * p, boost::int16_t v )
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{
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boost::endian::endian_store<boost::int16_t, 2, order::big>( p, v );
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}
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inline void store_big_u16( unsigned char * p, boost::uint16_t v )
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{
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boost::endian::endian_store<boost::uint16_t, 2, order::big>( p, v );
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}
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// store 24
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inline void store_little_s24( unsigned char * p, boost::int32_t v )
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{
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boost::endian::endian_store<boost::int32_t, 3, order::little>( p, v );
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}
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inline void store_little_u24( unsigned char * p, boost::uint32_t v )
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{
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boost::endian::endian_store<boost::uint32_t, 3, order::little>( p, v );
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}
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inline void store_big_s24( unsigned char * p, boost::int32_t v )
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{
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boost::endian::endian_store<boost::int32_t, 3, order::big>( p, v );
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}
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inline void store_big_u24( unsigned char * p, boost::uint32_t v )
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{
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boost::endian::endian_store<boost::uint32_t, 3, order::big>( p, v );
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}
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// store 32
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inline void store_little_s32( unsigned char * p, boost::int32_t v )
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{
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boost::endian::endian_store<boost::int32_t, 4, order::little>( p, v );
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}
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inline void store_little_u32( unsigned char * p, boost::uint32_t v )
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{
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boost::endian::endian_store<boost::uint32_t, 4, order::little>( p, v );
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}
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inline void store_big_s32( unsigned char * p, boost::int32_t v )
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{
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boost::endian::endian_store<boost::int32_t, 4, order::big>( p, v );
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}
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inline void store_big_u32( unsigned char * p, boost::uint32_t v )
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{
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boost::endian::endian_store<boost::uint32_t, 4, order::big>( p, v );
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}
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// store 40
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inline void store_little_s40( unsigned char * p, boost::int64_t v )
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{
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boost::endian::endian_store<boost::int64_t, 5, order::little>( p, v );
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}
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inline void store_little_u40( unsigned char * p, boost::uint64_t v )
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{
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boost::endian::endian_store<boost::uint64_t, 5, order::little>( p, v );
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}
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inline void store_big_s40( unsigned char * p, boost::int64_t v )
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{
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boost::endian::endian_store<boost::int64_t, 5, order::big>( p, v );
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}
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inline void store_big_u40( unsigned char * p, boost::uint64_t v )
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{
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boost::endian::endian_store<boost::uint64_t, 5, order::big>( p, v );
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}
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// store 48
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inline void store_little_s48( unsigned char * p, boost::int64_t v )
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{
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boost::endian::endian_store<boost::int64_t, 6, order::little>( p, v );
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}
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inline void store_little_u48( unsigned char * p, boost::uint64_t v )
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{
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boost::endian::endian_store<boost::uint64_t, 6, order::little>( p, v );
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}
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inline void store_big_s48( unsigned char * p, boost::int64_t v )
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{
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boost::endian::endian_store<boost::int64_t, 6, order::big>( p, v );
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}
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inline void store_big_u48( unsigned char * p, boost::uint64_t v )
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{
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boost::endian::endian_store<boost::uint64_t, 6, order::big>( p, v );
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}
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// store 56
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inline void store_little_s56( unsigned char * p, boost::int64_t v )
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{
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boost::endian::endian_store<boost::int64_t, 7, order::little>( p, v );
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}
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inline void store_little_u56( unsigned char * p, boost::uint64_t v )
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{
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boost::endian::endian_store<boost::uint64_t, 7, order::little>( p, v );
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}
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inline void store_big_s56( unsigned char * p, boost::int64_t v )
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{
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boost::endian::endian_store<boost::int64_t, 7, order::big>( p, v );
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}
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inline void store_big_u56( unsigned char * p, boost::uint64_t v )
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{
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boost::endian::endian_store<boost::uint64_t, 7, order::big>( p, v );
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}
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// store 64
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inline void store_little_s64( unsigned char * p, boost::int64_t v )
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{
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boost::endian::endian_store<boost::int64_t, 8, order::little>( p, v );
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}
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inline void store_little_u64( unsigned char * p, boost::uint64_t v )
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{
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boost::endian::endian_store<boost::uint64_t, 8, order::little>( p, v );
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}
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inline void store_big_s64( unsigned char * p, boost::int64_t v )
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{
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boost::endian::endian_store<boost::int64_t, 8, order::big>( p, v );
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}
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inline void store_big_u64( unsigned char * p, boost::uint64_t v )
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{
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boost::endian::endian_store<boost::uint64_t, 8, order::big>( p, v );
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}
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} // namespace endian
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} // namespace boost
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@ -76,3 +76,6 @@ compile endian_reverse_cx_test.cpp : <define>BOOST_ENDIAN_NO_INTRINSICS : endian
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run load_convenience_test.cpp ;
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run load_convenience_test.cpp : : : <define>BOOST_ENDIAN_NO_INTRINSICS : load_convenience_test_ni ;
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run store_convenience_test.cpp ;
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run store_convenience_test.cpp : : : <define>BOOST_ENDIAN_NO_INTRINSICS : store_convenience_test_ni ;
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277
test/store_convenience_test.cpp
Normal file
277
test/store_convenience_test.cpp
Normal file
@ -0,0 +1,277 @@
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// 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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int main()
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{
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using namespace boost::endian;
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// 16
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{
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unsigned char v[] = { 0xAA, 0xAA, 0xAA };
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store_little_s16( v, -3343 );
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unsigned char w1[] = { 0xF1, 0xF2, 0xAA };
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BOOST_TEST_EQ( byte_span( v ), byte_span( w1 ) );
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store_little_u16( v, 0x0201 );
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unsigned char w2[] = { 0x01, 0x02, 0xAA };
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BOOST_TEST_EQ( byte_span( v ), byte_span( w2 ) );
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store_big_s16( v, -3343 );
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unsigned char w3[] = { 0xF2, 0xF1, 0xAA };
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BOOST_TEST_EQ( byte_span( v ), byte_span( w3 ) );
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store_big_u16( v, 0x0201 );
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unsigned char w4[] = { 0x02, 0x01, 0xAA };
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BOOST_TEST_EQ( byte_span( v ), byte_span( w4 ) );
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}
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// 24
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{
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unsigned char v[] = { 0xAA, 0xAA, 0xAA, 0xAA };
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store_little_s24( v, -789775 );
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unsigned char w1[] = { 0xF1, 0xF2, 0xF3, 0xAA };
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BOOST_TEST_EQ( byte_span( v ), byte_span( w1 ) );
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store_little_u24( v, 0x030201 );
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unsigned char w2[] = { 0x01, 0x02, 0x03, 0xAA };
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BOOST_TEST_EQ( byte_span( v ), byte_span( w2 ) );
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store_big_s24( v, -789775 );
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unsigned char w3[] = { 0xF3, 0xF2, 0xF1, 0xAA };
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BOOST_TEST_EQ( byte_span( v ), byte_span( w3 ) );
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store_big_u24( v, 0x030201 );
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unsigned char w4[] = { 0x03, 0x02, 0x01, 0xAA };
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BOOST_TEST_EQ( byte_span( v ), byte_span( w4 ) );
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}
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// 32
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{
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unsigned char v[] = { 0xAA, 0xAA, 0xAA, 0xAA, 0xAA };
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store_little_s32( v, 0xF4F3F2F1 );
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unsigned char w1[] = { 0xF1, 0xF2, 0xF3, 0xF4, 0xAA };
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BOOST_TEST_EQ( byte_span( v ), byte_span( w1 ) );
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store_little_u32( v, 0x04030201 );
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unsigned char w2[] = { 0x01, 0x02, 0x03, 0x04, 0xAA };
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BOOST_TEST_EQ( byte_span( v ), byte_span( w2 ) );
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store_big_s32( v, 0xF4F3F2F1 );
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unsigned char w3[] = { 0xF4, 0xF3, 0xF2, 0xF1, 0xAA };
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BOOST_TEST_EQ( byte_span( v ), byte_span( w3 ) );
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store_big_u32( v, 0x04030201 );
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unsigned char w4[] = { 0x04, 0x03, 0x02, 0x01, 0xAA };
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BOOST_TEST_EQ( byte_span( v ), byte_span( w4 ) );
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}
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// 40
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{
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unsigned char v[] = { 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA };
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store_little_s40( v, -43135012111 );
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unsigned char w1[] = { 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xAA };
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BOOST_TEST_EQ( byte_span( v ), byte_span( w1 ) );
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store_little_u40( v, 0x0504030201 );
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unsigned char w2[] = { 0x01, 0x02, 0x03, 0x04, 0x05, 0xAA };
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BOOST_TEST_EQ( byte_span( v ), byte_span( w2 ) );
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store_big_s40( v, -43135012111 );
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unsigned char w3[] = { 0xF5, 0xF4, 0xF3, 0xF2, 0xF1, 0xAA };
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BOOST_TEST_EQ( byte_span( v ), byte_span( w3 ) );
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store_big_u40( v, 0x0504030201 );
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unsigned char w4[] = { 0x05, 0x04, 0x03, 0x02, 0x01, 0xAA };
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BOOST_TEST_EQ( byte_span( v ), byte_span( w4 ) );
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}
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// 48
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{
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unsigned char v[] = { 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA };
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store_little_s48( v, -9938739662095 );
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unsigned char w1[] = { 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xAA };
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BOOST_TEST_EQ( byte_span( v ), byte_span( w1 ) );
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store_little_u48( v, 0x060504030201 );
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unsigned char w2[] = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0xAA };
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BOOST_TEST_EQ( byte_span( v ), byte_span( w2 ) );
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store_big_s48( v, -9938739662095 );
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unsigned char w3[] = { 0xF6, 0xF5, 0xF4, 0xF3, 0xF2, 0xF1, 0xAA };
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BOOST_TEST_EQ( byte_span( v ), byte_span( w3 ) );
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store_big_u48( v, 0x060504030201 );
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unsigned char w4[] = { 0x06, 0x05, 0x04, 0x03, 0x02, 0x01, 0xAA };
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BOOST_TEST_EQ( byte_span( v ), byte_span( w4 ) );
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}
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// 56
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{
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unsigned char v[] = { 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA };
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store_little_s56( v, -2261738553347343 );
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unsigned char w1[] = { 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xAA };
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BOOST_TEST_EQ( byte_span( v ), byte_span( w1 ) );
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store_little_u56( v, 0x07060504030201 );
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unsigned char w2[] = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0xAA };
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BOOST_TEST_EQ( byte_span( v ), byte_span( w2 ) );
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store_big_s56( v, -2261738553347343 );
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unsigned char w3[] = { 0xF7, 0xF6, 0xF5, 0xF4, 0xF3, 0xF2, 0xF1, 0xAA };
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BOOST_TEST_EQ( byte_span( v ), byte_span( w3 ) );
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store_big_u56( v, 0x07060504030201 );
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unsigned char w4[] = { 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01, 0xAA };
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BOOST_TEST_EQ( byte_span( v ), byte_span( w4 ) );
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}
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// 64
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{
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unsigned char v[] = { 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA };
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store_little_s64( v, 0xF8F7F6F5F4F3F2F1 );
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unsigned char w1[] = { 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xAA };
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BOOST_TEST_EQ( byte_span( v ), byte_span( w1 ) );
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store_little_u64( v, 0x0807060504030201 );
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unsigned char w2[] = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0xAA };
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BOOST_TEST_EQ( byte_span( v ), byte_span( w2 ) );
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store_big_s64( v, 0xF8F7F6F5F4F3F2F1 );
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unsigned char w3[] = { 0xF8, 0xF7, 0xF6, 0xF5, 0xF4, 0xF3, 0xF2, 0xF1, 0xAA };
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BOOST_TEST_EQ( byte_span( v ), byte_span( w3 ) );
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store_big_u64( v, 0x0807060504030201 );
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unsigned char w4[] = { 0x08, 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01, 0xAA };
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BOOST_TEST_EQ( byte_span( v ), byte_span( w4 ) );
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}
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return boost::report_errors();
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}
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