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77 lines
1.7 KiB
C++
Executable file
77 lines
1.7 KiB
C++
Executable file
// Copyright (c) 2017-2022 Dr. Colin Hirsch and Daniel Frey
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// Please see LICENSE for license or visit https://github.com/taocpp/PEGTL/
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#ifndef TAO_PEGTL_CONTRIB_INTERNAL_ENDIAN_HPP
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#define TAO_PEGTL_CONTRIB_INTERNAL_ENDIAN_HPP
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#include <cstdint>
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#include <cstring>
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#include "../../config.hpp"
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#if defined( _WIN32 ) && !defined( __MINGW32__ ) && !defined( __CYGWIN__ )
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#include "endian_win.hpp"
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#else
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#include "endian_gcc.hpp"
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#endif
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namespace TAO_PEGTL_NAMESPACE::internal
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{
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enum class endian
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{
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#if defined( _WIN32 )
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little = 0,
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big = 1,
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native = little
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#elif defined( __BYTE_ORDER__ )
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little = __ORDER_LITTLE_ENDIAN__,
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big = __ORDER_BIG_ENDIAN__,
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native = __BYTE_ORDER__
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#else
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#error Unknown endianness.
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#endif
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};
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template< typename N >
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[[nodiscard]] N h_to_be( const N n ) noexcept
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{
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return N( to_and_from_be< sizeof( N ) >::convert( n ) );
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}
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template< typename N >
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[[nodiscard]] N be_to_h( const N n ) noexcept
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{
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return h_to_be( n );
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}
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template< typename N >
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[[nodiscard]] N be_to_h( const void* p ) noexcept
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{
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N n;
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std::memcpy( &n, p, sizeof( n ) );
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return internal::be_to_h( n );
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}
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template< typename N >
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[[nodiscard]] N h_to_le( const N n ) noexcept
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{
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return N( to_and_from_le< sizeof( N ) >::convert( n ) );
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}
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template< typename N >
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[[nodiscard]] N le_to_h( const N n ) noexcept
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{
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return h_to_le( n );
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}
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template< typename N >
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[[nodiscard]] N le_to_h( const void* p ) noexcept
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{
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N n;
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std::memcpy( &n, p, sizeof( n ) );
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return internal::le_to_h( n );
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}
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} // namespace TAO_PEGTL_NAMESPACE::internal
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#endif
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