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pineapple-src/externals/vcpkg/packages/boost-endian_x64-windows/include/boost/endian/arithmetic.hpp
pineappleEA b601909c6d early-access version 3088
2022-11-05 15:35:56 +01:00

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// boost/endian/arithmetic.hpp -------------------------------------------------------//
// (C) Copyright Darin Adler 2000
// (C) Copyright Beman Dawes 2006, 2009, 2014
// (C) Copyright Peter Dimov 2019
// Distributed under the Boost Software License, Version 1.0.
// See http://www.boost.org/LICENSE_1_0.txt
// See library home page at http://www.boost.org/libs/endian
//--------------------------------------------------------------------------------------//
// Original design developed by Darin Adler based on classes developed by Mark
// Borgerding. Four original class templates were combined into a single endian
// class template by Beman Dawes, who also added the unrolled_byte_loops sign
// partial specialization to correctly extend the sign when cover integer size
// differs from endian representation size.
// TODO: When a compiler supporting constexpr becomes available, try possible uses.
#ifndef BOOST_ENDIAN_ARITHMETIC_HPP
#define BOOST_ENDIAN_ARITHMETIC_HPP
#if defined(_MSC_VER)
# pragma warning(push)
# pragma warning(disable:4365) // conversion ... signed/unsigned mismatch
#endif
#include <boost/endian/buffers.hpp>
#include <boost/core/scoped_enum.hpp>
#include <boost/static_assert.hpp>
#include <boost/cstdint.hpp>
#include <boost/config.hpp>
#include <boost/config/workaround.hpp>
#include <iosfwd>
#include <climits>
#if defined(BOOST_BORLANDC) || defined(BOOST_CODEGEARC)
# pragma pack(push, 1)
#endif
# if CHAR_BIT != 8
# error Platforms with CHAR_BIT != 8 are not supported
# endif
# ifdef BOOST_NO_CXX11_DEFAULTED_FUNCTIONS
# define BOOST_ENDIAN_DEFAULT_CONSTRUCT {} // C++03
# else
# define BOOST_ENDIAN_DEFAULT_CONSTRUCT = default; // C++0x
# endif
// g++ pre-4.6 does not support unrestricted unions, but we have no Config macro for that
# if (defined(BOOST_NO_CXX11_DEFAULTED_FUNCTIONS) || BOOST_WORKAROUND(BOOST_GCC, < 40600)) && defined(BOOST_ENDIAN_FORCE_PODNESS)
# define BOOST_ENDIAN_NO_CTORS
# endif
# ifndef BOOST_ENDIAN_EXPLICIT_CTORS
# define BOOST_ENDIAN_EXPLICIT_OPT
# else
# define BOOST_ENDIAN_EXPLICIT_OPT explicit
# endif
//---------------------------------- synopsis ----------------------------------------//
namespace boost
{
namespace endian
{
template <BOOST_SCOPED_ENUM(order) Order, class T, std::size_t n_bits,
BOOST_SCOPED_ENUM(align) Align = align::no>
class endian_arithmetic;
// big endian signed integer aligned types
typedef endian_arithmetic<order::big, int8_t, 8, align::yes> big_int8_at;
typedef endian_arithmetic<order::big, int16_t, 16, align::yes> big_int16_at;
typedef endian_arithmetic<order::big, int32_t, 32, align::yes> big_int32_at;
typedef endian_arithmetic<order::big, int64_t, 64, align::yes> big_int64_at;
// big endian unsigned integer aligned types
typedef endian_arithmetic<order::big, uint8_t, 8, align::yes> big_uint8_at;
typedef endian_arithmetic<order::big, uint16_t, 16, align::yes> big_uint16_at;
typedef endian_arithmetic<order::big, uint32_t, 32, align::yes> big_uint32_at;
typedef endian_arithmetic<order::big, uint64_t, 64, align::yes> big_uint64_at;
// little endian signed integer aligned types
typedef endian_arithmetic<order::little, int8_t, 8, align::yes> little_int8_at;
typedef endian_arithmetic<order::little, int16_t, 16, align::yes> little_int16_at;
typedef endian_arithmetic<order::little, int32_t, 32, align::yes> little_int32_at;
typedef endian_arithmetic<order::little, int64_t, 64, align::yes> little_int64_at;
// little endian unsigned integer aligned types
typedef endian_arithmetic<order::little, uint8_t, 8, align::yes> little_uint8_at;
typedef endian_arithmetic<order::little, uint16_t, 16, align::yes> little_uint16_at;
typedef endian_arithmetic<order::little, uint32_t, 32, align::yes> little_uint32_at;
typedef endian_arithmetic<order::little, uint64_t, 64, align::yes> little_uint64_at;
// aligned floating point types
typedef endian_arithmetic<order::big, float, 32, align::yes> big_float32_at;
typedef endian_arithmetic<order::big, double, 64, align::yes> big_float64_at;
typedef endian_arithmetic<order::little, float, 32, align::yes> little_float32_at;
typedef endian_arithmetic<order::little, double, 64, align::yes> little_float64_at;
// aligned native endian typedefs are not provided because
// <cstdint> types are superior for this use case
// big endian signed integer unaligned types
typedef endian_arithmetic<order::big, int_least8_t, 8> big_int8_t;
typedef endian_arithmetic<order::big, int_least16_t, 16> big_int16_t;
typedef endian_arithmetic<order::big, int_least32_t, 24> big_int24_t;
typedef endian_arithmetic<order::big, int_least32_t, 32> big_int32_t;
typedef endian_arithmetic<order::big, int_least64_t, 40> big_int40_t;
typedef endian_arithmetic<order::big, int_least64_t, 48> big_int48_t;
typedef endian_arithmetic<order::big, int_least64_t, 56> big_int56_t;
typedef endian_arithmetic<order::big, int_least64_t, 64> big_int64_t;
// big endian unsigned integer unaligned types
typedef endian_arithmetic<order::big, uint_least8_t, 8> big_uint8_t;
typedef endian_arithmetic<order::big, uint_least16_t, 16> big_uint16_t;
typedef endian_arithmetic<order::big, uint_least32_t, 24> big_uint24_t;
typedef endian_arithmetic<order::big, uint_least32_t, 32> big_uint32_t;
typedef endian_arithmetic<order::big, uint_least64_t, 40> big_uint40_t;
typedef endian_arithmetic<order::big, uint_least64_t, 48> big_uint48_t;
typedef endian_arithmetic<order::big, uint_least64_t, 56> big_uint56_t;
typedef endian_arithmetic<order::big, uint_least64_t, 64> big_uint64_t;
// little endian signed integer unaligned types
typedef endian_arithmetic<order::little, int_least8_t, 8> little_int8_t;
typedef endian_arithmetic<order::little, int_least16_t, 16> little_int16_t;
typedef endian_arithmetic<order::little, int_least32_t, 24> little_int24_t;
typedef endian_arithmetic<order::little, int_least32_t, 32> little_int32_t;
typedef endian_arithmetic<order::little, int_least64_t, 40> little_int40_t;
typedef endian_arithmetic<order::little, int_least64_t, 48> little_int48_t;
typedef endian_arithmetic<order::little, int_least64_t, 56> little_int56_t;
typedef endian_arithmetic<order::little, int_least64_t, 64> little_int64_t;
// little endian unsigned integer unaligned types
typedef endian_arithmetic<order::little, uint_least8_t, 8> little_uint8_t;
typedef endian_arithmetic<order::little, uint_least16_t, 16> little_uint16_t;
typedef endian_arithmetic<order::little, uint_least32_t, 24> little_uint24_t;
typedef endian_arithmetic<order::little, uint_least32_t, 32> little_uint32_t;
typedef endian_arithmetic<order::little, uint_least64_t, 40> little_uint40_t;
typedef endian_arithmetic<order::little, uint_least64_t, 48> little_uint48_t;
typedef endian_arithmetic<order::little, uint_least64_t, 56> little_uint56_t;
typedef endian_arithmetic<order::little, uint_least64_t, 64> little_uint64_t;
// native endian signed integer unaligned types
typedef endian_arithmetic<order::native, int_least8_t, 8> native_int8_t;
typedef endian_arithmetic<order::native, int_least16_t, 16> native_int16_t;
typedef endian_arithmetic<order::native, int_least32_t, 24> native_int24_t;
typedef endian_arithmetic<order::native, int_least32_t, 32> native_int32_t;
typedef endian_arithmetic<order::native, int_least64_t, 40> native_int40_t;
typedef endian_arithmetic<order::native, int_least64_t, 48> native_int48_t;
typedef endian_arithmetic<order::native, int_least64_t, 56> native_int56_t;
typedef endian_arithmetic<order::native, int_least64_t, 64> native_int64_t;
// native endian unsigned integer unaligned types
typedef endian_arithmetic<order::native, uint_least8_t, 8> native_uint8_t;
typedef endian_arithmetic<order::native, uint_least16_t, 16> native_uint16_t;
typedef endian_arithmetic<order::native, uint_least32_t, 24> native_uint24_t;
typedef endian_arithmetic<order::native, uint_least32_t, 32> native_uint32_t;
typedef endian_arithmetic<order::native, uint_least64_t, 40> native_uint40_t;
typedef endian_arithmetic<order::native, uint_least64_t, 48> native_uint48_t;
typedef endian_arithmetic<order::native, uint_least64_t, 56> native_uint56_t;
typedef endian_arithmetic<order::native, uint_least64_t, 64> native_uint64_t;
// unaligned floating point types
typedef endian_arithmetic<order::big, float, 32, align::no> big_float32_t;
typedef endian_arithmetic<order::big, double, 64, align::no> big_float64_t;
typedef endian_arithmetic<order::little, float, 32, align::no> little_float32_t;
typedef endian_arithmetic<order::little, double, 64, align::no> little_float64_t;
typedef endian_arithmetic<order::native, float, 32, align::no> native_float32_t;
typedef endian_arithmetic<order::native, double, 64, align::no> native_float64_t;
//---------------------------------- end synopsis ------------------------------------//
template <BOOST_SCOPED_ENUM(order) Order, class T, std::size_t n_bits,
BOOST_SCOPED_ENUM(align) Align>
class endian_arithmetic
{
private:
typedef endian_buffer<Order, T, n_bits, Align> buffer_type;
#ifdef BOOST_ENDIAN_NO_CTORS
public:
#else
private:
#endif
buffer_type buf_;
public:
typedef T value_type;
#ifndef BOOST_ENDIAN_NO_CTORS
endian_arithmetic() BOOST_ENDIAN_DEFAULT_CONSTRUCT
BOOST_ENDIAN_EXPLICIT_OPT endian_arithmetic( T val ) BOOST_NOEXCEPT: buf_( val )
{
}
#endif
endian_arithmetic& operator=( T val ) BOOST_NOEXCEPT
{
buf_ = val;
return *this;
}
value_type value() const BOOST_NOEXCEPT
{
return buf_.value();
}
unsigned char const * data() const BOOST_NOEXCEPT
{
return buf_.data();
}
unsigned char * data() BOOST_NOEXCEPT
{
return buf_.data();
}
operator value_type() const BOOST_NOEXCEPT
{
return this->value();
}
operator buffer_type& () BOOST_NOEXCEPT
{
return buf_;
}
operator buffer_type const& () BOOST_NOEXCEPT
{
return buf_;
}
// operators
T operator+() const BOOST_NOEXCEPT
{
return this->value();
}
endian_arithmetic& operator+=( T y ) BOOST_NOEXCEPT
{
*this = static_cast<T>( this->value() + y );
return *this;
}
endian_arithmetic& operator-=( T y ) BOOST_NOEXCEPT
{
*this = static_cast<T>( this->value() - y );
return *this;
}
endian_arithmetic& operator*=( T y ) BOOST_NOEXCEPT
{
*this = static_cast<T>( this->value() * y );
return *this;
}
endian_arithmetic& operator/=( T y ) BOOST_NOEXCEPT
{
*this = static_cast<T>( this->value() / y );
return *this;
}
endian_arithmetic& operator%=( T y ) BOOST_NOEXCEPT
{
*this = static_cast<T>( this->value() % y );
return *this;
}
endian_arithmetic& operator&=( T y ) BOOST_NOEXCEPT
{
*this = static_cast<T>( this->value() & y );
return *this;
}
endian_arithmetic& operator|=( T y ) BOOST_NOEXCEPT
{
*this = static_cast<T>( this->value() | y );
return *this;
}
endian_arithmetic& operator^=( T y ) BOOST_NOEXCEPT
{
*this = static_cast<T>( this->value() ^ y );
return *this;
}
endian_arithmetic& operator<<=( T y ) BOOST_NOEXCEPT
{
*this = static_cast<T>( this->value() << y );
return *this;
}
endian_arithmetic& operator>>=( T y ) BOOST_NOEXCEPT
{
*this = static_cast<T>( this->value() >> y );
return *this;
}
endian_arithmetic& operator++() BOOST_NOEXCEPT
{
*this += 1;
return *this;
}
endian_arithmetic& operator--() BOOST_NOEXCEPT
{
*this -= 1;
return *this;
}
endian_arithmetic operator++(int) BOOST_NOEXCEPT
{
endian_arithmetic tmp( *this );
*this += 1;
return tmp;
}
endian_arithmetic operator--(int) BOOST_NOEXCEPT
{
endian_arithmetic tmp( *this );
*this -= 1;
return tmp;
}
template<class Ch, class Tr>
friend std::basic_ostream<Ch, Tr>&
operator<<( std::basic_ostream<Ch, Tr>& os, endian_arithmetic const& x )
{
return os << x.value();
}
template<class Ch, class Tr>
friend std::basic_istream<Ch, Tr>&
operator>>( std::basic_istream<Ch, Tr>& is, endian_arithmetic& x )
{
T i;
if( is >> i )
{
x = i;
}
return is;
}
};
} // namespace endian
} // namespace boost
#if defined(BOOST_BORLANDC) || defined(BOOST_CODEGEARC)
# pragma pack(pop)
#endif
#if defined(_MSC_VER)
# pragma warning(pop)
#endif
#endif // BOOST_ENDIAN_ARITHMETIC_HPP
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