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Change names to make room for modify-in-place names.

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Beman
2013-05-12 08:58:44 -04:00
parent 854c27939a
commit 0fef88ab3f
2 changed files with 194 additions and 172 deletions
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258
include/boost/endian/converters.hpp
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@@ -27,41 +27,52 @@ namespace endian
# define BOOST_ENDIAN_ORDER_ENUM_DEFINED # define BOOST_ENDIAN_ORDER_ENUM_DEFINED
#endif #endif
// reverse byte order (i.e. endianness) //--------------------------------------------------------------------------------------//
// value returning interface approach suggested by Phil Endecott. // value returning interface //
inline int16_t reverse_bytes(int16_t x) BOOST_NOEXCEPT; // suggested by Phil Endecott //
inline int32_t reverse_bytes(int32_t x) BOOST_NOEXCEPT; //--------------------------------------------------------------------------------------//
inline int64_t reverse_bytes(int64_t x) BOOST_NOEXCEPT;
inline uint16_t reverse_bytes(uint16_t x) BOOST_NOEXCEPT;
inline uint32_t reverse_bytes(uint32_t x) BOOST_NOEXCEPT;
inline uint64_t reverse_bytes(uint64_t x) BOOST_NOEXCEPT;
// reverse_bytes overloads for floating point types as requested by Vicente // reverse byte order (i.e. endianness)
//
inline int16_t reverse_value(int16_t x) BOOST_NOEXCEPT;
inline int32_t reverse_value(int32_t x) BOOST_NOEXCEPT;
inline int64_t reverse_value(int64_t x) BOOST_NOEXCEPT;
inline uint16_t reverse_value(uint16_t x) BOOST_NOEXCEPT;
inline uint32_t reverse_value(uint32_t x) BOOST_NOEXCEPT;
inline uint64_t reverse_value(uint64_t x) BOOST_NOEXCEPT;
// reverse_value overloads for floating point types as requested by Vicente
// Botet and others. // Botet and others.
// TODO: Track progress of Floating-Point Typedefs Having Specified Widths proposal (N3626) // TODO: Track progress of Floating-Point Typedefs Having Specified Widths proposal (N3626)
inline float reverse_bytes(float x) BOOST_NOEXCEPT; inline float reverse_value(float x) BOOST_NOEXCEPT;
inline double reverse_bytes(double x) BOOST_NOEXCEPT; inline double reverse_value(double x) BOOST_NOEXCEPT;
// general reverse_bytes function template to meet requests for UDT support by Vicente namespace detail
// This function is unsafe for general use, so is placed in namespace detail.
// Think of what happens if you reverse_value a std::pair<int16_t, int_16_t>; the bytes
// from first end up in second and the bytes from second end up in first. Not good!
{
// general reverse_value function template to meet requests for UDT support by Vicente
// Botet and others. // Botet and others.
template <class T> template <class T>
inline T reverse_bytes(T x) BOOST_NOEXCEPT; // convert little to big or visa versa inline T reverse_value(T x) BOOST_NOEXCEPT; // convert little to big or visa versa
}
// reverse bytes unless native endianness is big // reverse bytes unless native endianness is big
// possible names: reverse_unless_native_big, reverse_bytes_unless_big, reverse_unless_big // possible names: reverse_unless_native_big, reverse_value_unless_big, reverse_unless_big
template <class T> template <class T>
inline T big_endian(T x) BOOST_NOEXCEPT; inline T big_endian_value(T x) BOOST_NOEXCEPT;
// Return: x if native endian order is big, otherwise reverse_bytes(x) // Return: x if native endian order is big, otherwise reverse_value(x)
// reverse bytes unless native endianness is little // reverse bytes unless native endianness is little
// possible names: reverse_unless_native_little, reverse_bytes_unless_little, reverse_unless_little // possible names: reverse_unless_native_little, reverse_value_unless_little, reverse_unless_little
template <class T> template <class T>
inline T little_endian(T x) BOOST_NOEXCEPT; inline T little_endian_value(T x) BOOST_NOEXCEPT;
// Return: x if native endian order is little, otherwise reverse_bytes(x); // Return: x if native endian order is little, otherwise reverse_value(x);
// compile-time generic byte order conversion // compile-time generic byte order conversion
template <BOOST_SCOPED_ENUM(order) From, BOOST_SCOPED_ENUM(order) To, class T> template <BOOST_SCOPED_ENUM(order) From, BOOST_SCOPED_ENUM(order) To, class T>
T convert(T from) BOOST_NOEXCEPT; T convert_value(T from) BOOST_NOEXCEPT;
// runtime actual byte-order determination // runtime actual byte-order determination
inline BOOST_SCOPED_ENUM(order) actual_order(BOOST_SCOPED_ENUM(order) o) BOOST_NOEXCEPT; inline BOOST_SCOPED_ENUM(order) actual_order(BOOST_SCOPED_ENUM(order) o) BOOST_NOEXCEPT;
@@ -69,17 +80,25 @@ namespace endian
// runtime byte-order conversion // runtime byte-order conversion
template <class T> template <class T>
T convert(T from, BOOST_SCOPED_ENUM(order) from_order, T convert_value(T from, BOOST_SCOPED_ENUM(order) from_order,
BOOST_SCOPED_ENUM(order) to_order) BOOST_NOEXCEPT; BOOST_SCOPED_ENUM(order) to_order) BOOST_NOEXCEPT;
//----------------------------------- implementation -----------------------------------//
// -- reverse_bytes portable approach suggested by tymofey, with avoidance of
// undefined behavior as suggested by Giovanni Piero Deretta, and a further
// refinement suggested by Pyry Jahkola.
// -- reverse_bytes intrinsic approach suggested by David Stone, who privided his
// Boost licensed macro implementation.
inline int16_t reverse_bytes(int16_t x) BOOST_NOEXCEPT //----------------------------------- end synopsis -------------------------------------//
//--------------------------------------------------------------------------------------//
// //
// implementation //
// //
// -- reverse_value portable approach suggested by tymofey, with avoidance of //
// undefined behavior as suggested by Giovanni Piero Deretta, and a further //
// refinement suggested by Pyry Jahkola. //
// -- reverse_value intrinsic approach suggested by reviewers, and by David Stone, //
// who provided his Boost licensed macro implementation (see detail/intrinsic.hpp //
// //
//--------------------------------------------------------------------------------------//
inline int16_t reverse_value(int16_t x) BOOST_NOEXCEPT
{ {
# ifdef BOOST_ENDIAN_NO_INTRINSICS # ifdef BOOST_ENDIAN_NO_INTRINSICS
return (static_cast<uint16_t>(x) << 8) return (static_cast<uint16_t>(x) << 8)
@@ -89,7 +108,7 @@ namespace endian
# endif # endif
} }
inline int32_t reverse_bytes(int32_t x) BOOST_NOEXCEPT inline int32_t reverse_value(int32_t x) BOOST_NOEXCEPT
{ {
# ifdef BOOST_ENDIAN_NO_INTRINSICS # ifdef BOOST_ENDIAN_NO_INTRINSICS
uint32_t step16; uint32_t step16;
@@ -102,7 +121,7 @@ namespace endian
# endif # endif
} }
inline int64_t reverse_bytes(int64_t x) BOOST_NOEXCEPT inline int64_t reverse_value(int64_t x) BOOST_NOEXCEPT
{ {
# ifdef BOOST_ENDIAN_NO_INTRINSICS # ifdef BOOST_ENDIAN_NO_INTRINSICS
uint64_t step32, step16; uint64_t step32, step16;
@@ -116,7 +135,7 @@ namespace endian
# endif # endif
} }
inline uint16_t reverse_bytes(uint16_t x) BOOST_NOEXCEPT inline uint16_t reverse_value(uint16_t x) BOOST_NOEXCEPT
{ {
# ifdef BOOST_ENDIAN_NO_INTRINSICS # ifdef BOOST_ENDIAN_NO_INTRINSICS
return (x << 8) return (x << 8)
@@ -126,7 +145,7 @@ namespace endian
# endif # endif
} }
inline uint32_t reverse_bytes(uint32_t x) BOOST_NOEXCEPT inline uint32_t reverse_value(uint32_t x) BOOST_NOEXCEPT
{ {
# ifdef BOOST_ENDIAN_NO_INTRINSICS # ifdef BOOST_ENDIAN_NO_INTRINSICS
uint32_t step16; uint32_t step16;
@@ -139,7 +158,7 @@ namespace endian
# endif # endif
} }
inline uint64_t reverse_bytes(uint64_t x) BOOST_NOEXCEPT inline uint64_t reverse_value(uint64_t x) BOOST_NOEXCEPT
{ {
# ifdef BOOST_ENDIAN_NO_INTRINSICS # ifdef BOOST_ENDIAN_NO_INTRINSICS
uint64_t step32, step16; uint64_t step32, step16;
@@ -153,26 +172,28 @@ namespace endian
# endif # endif
} }
inline float reverse_bytes(float x) BOOST_NOEXCEPT inline float reverse_value(float x) BOOST_NOEXCEPT
{ {
BOOST_STATIC_ASSERT_MSG(sizeof(float) == sizeof(uint32_t), BOOST_STATIC_ASSERT_MSG(sizeof(float) == sizeof(uint32_t),
"boost::endian only supprts sizeof(float) == 4; please report error to boost mailing list"); "boost::endian only supprts sizeof(float) == 4; please report error to boost mailing list");
uint32_t tmp = reverse_bytes(*(const uint32_t*)&x); uint32_t tmp = reverse_value(*(const uint32_t*)&x);
return *(const float*)&tmp; return *(const float*)&tmp;
} }
inline double reverse_bytes(double x) BOOST_NOEXCEPT inline double reverse_value(double x) BOOST_NOEXCEPT
{ {
BOOST_STATIC_ASSERT_MSG(sizeof(double) == sizeof(uint64_t), BOOST_STATIC_ASSERT_MSG(sizeof(double) == sizeof(uint64_t),
"boost::endian only supprts sizeof(double) == 8; please report error to boost mailing list"); "boost::endian only supprts sizeof(double) == 8; please report error to boost mailing list");
uint64_t tmp = reverse_bytes(*(const uint64_t*)&x); uint64_t tmp = reverse_value(*(const uint64_t*)&x);
return *(const double*)&tmp; return *(const double*)&tmp;
} }
// general reverse_bytes function template implementation approach using std::reverse namespace detail // this function is unsafe for general use, so placed in namespace detail
{
// general reverse_value function template implementation approach using std::reverse
// suggested by Mathias Gaunard // suggested by Mathias Gaunard
template <class T> template <class T>
inline T reverse_bytes(T x) BOOST_NOEXCEPT inline T reverse_value(T x) BOOST_NOEXCEPT
{ {
T tmp(x); T tmp(x);
std::reverse( std::reverse(
@@ -180,114 +201,115 @@ namespace endian
reinterpret_cast<char*>(&tmp) + sizeof(T)); reinterpret_cast<char*>(&tmp) + sizeof(T));
return tmp; return tmp;
} }
}
template <class T> template <class T>
inline T big_endian(T x) BOOST_NOEXCEPT inline T big_endian_value(T x) BOOST_NOEXCEPT
{ {
# ifdef BOOST_BIG_ENDIAN # ifdef BOOST_BIG_ENDIAN
return x; return x;
# else # else
return reverse_bytes(x); return reverse_value(x);
# endif # endif
} }
template <class T> template <class T>
inline T little_endian(T x) BOOST_NOEXCEPT inline T little_endian_value(T x) BOOST_NOEXCEPT
{ {
# ifdef BOOST_LITTLE_ENDIAN # ifdef BOOST_LITTLE_ENDIAN
return x; return x;
# else # else
return reverse_bytes(x); return reverse_value(x);
# endif # endif
} }
template<> inline int16_t convert<order::big, order::big>(int16_t x) BOOST_NOEXCEPT {return x;} template<> inline int16_t convert_value<order::big, order::big>(int16_t x) BOOST_NOEXCEPT {return x;}
template<> inline int16_t convert<order::little, order::little>(int16_t x) BOOST_NOEXCEPT {return x;} template<> inline int16_t convert_value<order::little, order::little>(int16_t x) BOOST_NOEXCEPT {return x;}
template<> inline int16_t convert<order::native, order::native>(int16_t x) BOOST_NOEXCEPT {return x;} template<> inline int16_t convert_value<order::native, order::native>(int16_t x) BOOST_NOEXCEPT {return x;}
template<> inline uint16_t convert<order::big, order::big>(uint16_t x) BOOST_NOEXCEPT {return x;} template<> inline uint16_t convert_value<order::big, order::big>(uint16_t x) BOOST_NOEXCEPT {return x;}
template<> inline uint16_t convert<order::little, order::little>(uint16_t x) BOOST_NOEXCEPT {return x;} template<> inline uint16_t convert_value<order::little, order::little>(uint16_t x) BOOST_NOEXCEPT {return x;}
template<> inline uint16_t convert<order::native, order::native>(uint16_t x) BOOST_NOEXCEPT {return x;} template<> inline uint16_t convert_value<order::native, order::native>(uint16_t x) BOOST_NOEXCEPT {return x;}
template<> inline int32_t convert<order::big, order::big>(int32_t x) BOOST_NOEXCEPT {return x;} template<> inline int32_t convert_value<order::big, order::big>(int32_t x) BOOST_NOEXCEPT {return x;}
template<> inline int32_t convert<order::little, order::little>(int32_t x) BOOST_NOEXCEPT {return x;} template<> inline int32_t convert_value<order::little, order::little>(int32_t x) BOOST_NOEXCEPT {return x;}
template<> inline int32_t convert<order::native, order::native>(int32_t x) BOOST_NOEXCEPT {return x;} template<> inline int32_t convert_value<order::native, order::native>(int32_t x) BOOST_NOEXCEPT {return x;}
template<> inline uint32_t convert<order::big, order::big>(uint32_t x) BOOST_NOEXCEPT {return x;} template<> inline uint32_t convert_value<order::big, order::big>(uint32_t x) BOOST_NOEXCEPT {return x;}
template<> inline uint32_t convert<order::little, order::little>(uint32_t x) BOOST_NOEXCEPT {return x;} template<> inline uint32_t convert_value<order::little, order::little>(uint32_t x) BOOST_NOEXCEPT {return x;}
template<> inline uint32_t convert<order::native, order::native>(uint32_t x) BOOST_NOEXCEPT {return x;} template<> inline uint32_t convert_value<order::native, order::native>(uint32_t x) BOOST_NOEXCEPT {return x;}
template<> inline int64_t convert<order::big, order::big>(int64_t x) BOOST_NOEXCEPT {return x;} template<> inline int64_t convert_value<order::big, order::big>(int64_t x) BOOST_NOEXCEPT {return x;}
template<> inline int64_t convert<order::little, order::little>(int64_t x) BOOST_NOEXCEPT {return x;} template<> inline int64_t convert_value<order::little, order::little>(int64_t x) BOOST_NOEXCEPT {return x;}
template<> inline int64_t convert<order::native, order::native>(int64_t x) BOOST_NOEXCEPT {return x;} template<> inline int64_t convert_value<order::native, order::native>(int64_t x) BOOST_NOEXCEPT {return x;}
template<> inline uint64_t convert<order::big, order::big>(uint64_t x) BOOST_NOEXCEPT {return x;} template<> inline uint64_t convert_value<order::big, order::big>(uint64_t x) BOOST_NOEXCEPT {return x;}
template<> inline uint64_t convert<order::little, order::little>(uint64_t x) BOOST_NOEXCEPT {return x;} template<> inline uint64_t convert_value<order::little, order::little>(uint64_t x) BOOST_NOEXCEPT {return x;}
template<> inline uint64_t convert<order::native, order::native>(uint64_t x) BOOST_NOEXCEPT {return x;} template<> inline uint64_t convert_value<order::native, order::native>(uint64_t x) BOOST_NOEXCEPT {return x;}
template<> inline float convert<order::big, order::big>(float x) BOOST_NOEXCEPT {return x;} template<> inline float convert_value<order::big, order::big>(float x) BOOST_NOEXCEPT {return x;}
template<> inline float convert<order::little, order::little>(float x) BOOST_NOEXCEPT {return x;} template<> inline float convert_value<order::little, order::little>(float x) BOOST_NOEXCEPT {return x;}
template<> inline float convert<order::native, order::native>(float x) BOOST_NOEXCEPT {return x;} template<> inline float convert_value<order::native, order::native>(float x) BOOST_NOEXCEPT {return x;}
template<> inline double convert<order::big, order::big>(double x) BOOST_NOEXCEPT {return x;} template<> inline double convert_value<order::big, order::big>(double x) BOOST_NOEXCEPT {return x;}
template<> inline double convert<order::little, order::little>(double x) BOOST_NOEXCEPT {return x;} template<> inline double convert_value<order::little, order::little>(double x) BOOST_NOEXCEPT {return x;}
template<> inline double convert<order::native, order::native>(double x) BOOST_NOEXCEPT {return x;} template<> inline double convert_value<order::native, order::native>(double x) BOOST_NOEXCEPT {return x;}
template<> inline int16_t convert<order::big, order::little>(int16_t x) BOOST_NOEXCEPT {return reverse_bytes(x);} template<> inline int16_t convert_value<order::big, order::little>(int16_t x) BOOST_NOEXCEPT {return reverse_value(x);}
template<> inline int16_t convert<order::big, order::native>(int16_t x) BOOST_NOEXCEPT {return big_endian(x);} template<> inline int16_t convert_value<order::big, order::native>(int16_t x) BOOST_NOEXCEPT {return big_endian_value(x);}
template<> inline int16_t convert<order::little, order::big>(int16_t x) BOOST_NOEXCEPT {return reverse_bytes(x);} template<> inline int16_t convert_value<order::little, order::big>(int16_t x) BOOST_NOEXCEPT {return reverse_value(x);}
template<> inline int16_t convert<order::little, order::native>(int16_t x) BOOST_NOEXCEPT {return little_endian(x);} template<> inline int16_t convert_value<order::little, order::native>(int16_t x) BOOST_NOEXCEPT {return little_endian_value(x);}
template<> inline int16_t convert<order::native, order::big>(int16_t x) BOOST_NOEXCEPT {return big_endian(x);} template<> inline int16_t convert_value<order::native, order::big>(int16_t x) BOOST_NOEXCEPT {return big_endian_value(x);}
template<> inline int16_t convert<order::native, order::little>(int16_t x) BOOST_NOEXCEPT {return little_endian(x);} template<> inline int16_t convert_value<order::native, order::little>(int16_t x) BOOST_NOEXCEPT {return little_endian_value(x);}
template<> inline uint16_t convert<order::big, order::little>(uint16_t x) BOOST_NOEXCEPT {return reverse_bytes(x);} template<> inline uint16_t convert_value<order::big, order::little>(uint16_t x) BOOST_NOEXCEPT {return reverse_value(x);}
template<> inline uint16_t convert<order::big, order::native>(uint16_t x) BOOST_NOEXCEPT {return big_endian(x);} template<> inline uint16_t convert_value<order::big, order::native>(uint16_t x) BOOST_NOEXCEPT {return big_endian_value(x);}
template<> inline uint16_t convert<order::little, order::big>(uint16_t x) BOOST_NOEXCEPT {return reverse_bytes(x);} template<> inline uint16_t convert_value<order::little, order::big>(uint16_t x) BOOST_NOEXCEPT {return reverse_value(x);}
template<> inline uint16_t convert<order::little, order::native>(uint16_t x) BOOST_NOEXCEPT {return little_endian(x);} template<> inline uint16_t convert_value<order::little, order::native>(uint16_t x) BOOST_NOEXCEPT {return little_endian_value(x);}
template<> inline uint16_t convert<order::native, order::big>(uint16_t x) BOOST_NOEXCEPT {return big_endian(x);} template<> inline uint16_t convert_value<order::native, order::big>(uint16_t x) BOOST_NOEXCEPT {return big_endian_value(x);}
template<> inline uint16_t convert<order::native, order::little>(uint16_t x) BOOST_NOEXCEPT {return little_endian(x);} template<> inline uint16_t convert_value<order::native, order::little>(uint16_t x) BOOST_NOEXCEPT {return little_endian_value(x);}
template<> inline int32_t convert<order::big, order::little>(int32_t x) BOOST_NOEXCEPT {return reverse_bytes(x);} template<> inline int32_t convert_value<order::big, order::little>(int32_t x) BOOST_NOEXCEPT {return reverse_value(x);}
template<> inline int32_t convert<order::big, order::native>(int32_t x) BOOST_NOEXCEPT {return big_endian(x);} template<> inline int32_t convert_value<order::big, order::native>(int32_t x) BOOST_NOEXCEPT {return big_endian_value(x);}
template<> inline int32_t convert<order::little, order::big>(int32_t x) BOOST_NOEXCEPT {return reverse_bytes(x);} template<> inline int32_t convert_value<order::little, order::big>(int32_t x) BOOST_NOEXCEPT {return reverse_value(x);}
template<> inline int32_t convert<order::little, order::native>(int32_t x) BOOST_NOEXCEPT {return little_endian(x);} template<> inline int32_t convert_value<order::little, order::native>(int32_t x) BOOST_NOEXCEPT {return little_endian_value(x);}
template<> inline int32_t convert<order::native, order::big>(int32_t x) BOOST_NOEXCEPT {return big_endian(x);} template<> inline int32_t convert_value<order::native, order::big>(int32_t x) BOOST_NOEXCEPT {return big_endian_value(x);}
template<> inline int32_t convert<order::native, order::little>(int32_t x) BOOST_NOEXCEPT {return little_endian(x);} template<> inline int32_t convert_value<order::native, order::little>(int32_t x) BOOST_NOEXCEPT {return little_endian_value(x);}
template<> inline uint32_t convert<order::big, order::little>(uint32_t x) BOOST_NOEXCEPT {return reverse_bytes(x);} template<> inline uint32_t convert_value<order::big, order::little>(uint32_t x) BOOST_NOEXCEPT {return reverse_value(x);}
template<> inline uint32_t convert<order::big, order::native>(uint32_t x) BOOST_NOEXCEPT {return big_endian(x);} template<> inline uint32_t convert_value<order::big, order::native>(uint32_t x) BOOST_NOEXCEPT {return big_endian_value(x);}
template<> inline uint32_t convert<order::little, order::big>(uint32_t x) BOOST_NOEXCEPT {return reverse_bytes(x);} template<> inline uint32_t convert_value<order::little, order::big>(uint32_t x) BOOST_NOEXCEPT {return reverse_value(x);}
template<> inline uint32_t convert<order::little, order::native>(uint32_t x) BOOST_NOEXCEPT {return little_endian(x);} template<> inline uint32_t convert_value<order::little, order::native>(uint32_t x) BOOST_NOEXCEPT {return little_endian_value(x);}
template<> inline uint32_t convert<order::native, order::big>(uint32_t x) BOOST_NOEXCEPT {return big_endian(x);} template<> inline uint32_t convert_value<order::native, order::big>(uint32_t x) BOOST_NOEXCEPT {return big_endian_value(x);}
template<> inline uint32_t convert<order::native, order::little>(uint32_t x) BOOST_NOEXCEPT {return little_endian(x);} template<> inline uint32_t convert_value<order::native, order::little>(uint32_t x) BOOST_NOEXCEPT {return little_endian_value(x);}
template<> inline int64_t convert<order::big, order::little>(int64_t x) BOOST_NOEXCEPT {return reverse_bytes(x);} template<> inline int64_t convert_value<order::big, order::little>(int64_t x) BOOST_NOEXCEPT {return reverse_value(x);}
template<> inline int64_t convert<order::big, order::native>(int64_t x) BOOST_NOEXCEPT {return big_endian(x);} template<> inline int64_t convert_value<order::big, order::native>(int64_t x) BOOST_NOEXCEPT {return big_endian_value(x);}
template<> inline int64_t convert<order::little, order::big>(int64_t x) BOOST_NOEXCEPT {return reverse_bytes(x);} template<> inline int64_t convert_value<order::little, order::big>(int64_t x) BOOST_NOEXCEPT {return reverse_value(x);}
template<> inline int64_t convert<order::little, order::native>(int64_t x) BOOST_NOEXCEPT {return little_endian(x);} template<> inline int64_t convert_value<order::little, order::native>(int64_t x) BOOST_NOEXCEPT {return little_endian_value(x);}
template<> inline int64_t convert<order::native, order::big>(int64_t x) BOOST_NOEXCEPT {return big_endian(x);} template<> inline int64_t convert_value<order::native, order::big>(int64_t x) BOOST_NOEXCEPT {return big_endian_value(x);}
template<> inline int64_t convert<order::native, order::little>(int64_t x) BOOST_NOEXCEPT {return little_endian(x);} template<> inline int64_t convert_value<order::native, order::little>(int64_t x) BOOST_NOEXCEPT {return little_endian_value(x);}
template<> inline uint64_t convert<order::big, order::little>(uint64_t x) BOOST_NOEXCEPT {return reverse_bytes(x);} template<> inline uint64_t convert_value<order::big, order::little>(uint64_t x) BOOST_NOEXCEPT {return reverse_value(x);}
template<> inline uint64_t convert<order::big, order::native>(uint64_t x) BOOST_NOEXCEPT {return big_endian(x);} template<> inline uint64_t convert_value<order::big, order::native>(uint64_t x) BOOST_NOEXCEPT {return big_endian_value(x);}
template<> inline uint64_t convert<order::little, order::big>(uint64_t x) BOOST_NOEXCEPT {return reverse_bytes(x);} template<> inline uint64_t convert_value<order::little, order::big>(uint64_t x) BOOST_NOEXCEPT {return reverse_value(x);}
template<> inline uint64_t convert<order::little, order::native>(uint64_t x) BOOST_NOEXCEPT {return little_endian(x);} template<> inline uint64_t convert_value<order::little, order::native>(uint64_t x) BOOST_NOEXCEPT {return little_endian_value(x);}
template<> inline uint64_t convert<order::native, order::big>(uint64_t x) BOOST_NOEXCEPT {return big_endian(x);} template<> inline uint64_t convert_value<order::native, order::big>(uint64_t x) BOOST_NOEXCEPT {return big_endian_value(x);}
template<> inline uint64_t convert<order::native, order::little>(uint64_t x) BOOST_NOEXCEPT {return little_endian(x);} template<> inline uint64_t convert_value<order::native, order::little>(uint64_t x) BOOST_NOEXCEPT {return little_endian_value(x);}
template<> inline float convert<order::big, order::little>(float x) BOOST_NOEXCEPT {return reverse_bytes(x);} template<> inline float convert_value<order::big, order::little>(float x) BOOST_NOEXCEPT {return reverse_value(x);}
template<> inline float convert<order::big, order::native>(float x) BOOST_NOEXCEPT {return big_endian(x);} template<> inline float convert_value<order::big, order::native>(float x) BOOST_NOEXCEPT {return big_endian_value(x);}
template<> inline float convert<order::little, order::big>(float x) BOOST_NOEXCEPT {return reverse_bytes(x);} template<> inline float convert_value<order::little, order::big>(float x) BOOST_NOEXCEPT {return reverse_value(x);}
template<> inline float convert<order::little, order::native>(float x) BOOST_NOEXCEPT {return little_endian(x);} template<> inline float convert_value<order::little, order::native>(float x) BOOST_NOEXCEPT {return little_endian_value(x);}
template<> inline float convert<order::native, order::big>(float x) BOOST_NOEXCEPT {return big_endian(x);} template<> inline float convert_value<order::native, order::big>(float x) BOOST_NOEXCEPT {return big_endian_value(x);}
template<> inline float convert<order::native, order::little>(float x) BOOST_NOEXCEPT {return little_endian(x);} template<> inline float convert_value<order::native, order::little>(float x) BOOST_NOEXCEPT {return little_endian_value(x);}
template<> inline double convert<order::big, order::little>(double x) BOOST_NOEXCEPT {return reverse_bytes(x);} template<> inline double convert_value<order::big, order::little>(double x) BOOST_NOEXCEPT {return reverse_value(x);}
template<> inline double convert<order::big, order::native>(double x) BOOST_NOEXCEPT {return big_endian(x);} template<> inline double convert_value<order::big, order::native>(double x) BOOST_NOEXCEPT {return big_endian_value(x);}
template<> inline double convert<order::little, order::big>(double x) BOOST_NOEXCEPT {return reverse_bytes(x);} template<> inline double convert_value<order::little, order::big>(double x) BOOST_NOEXCEPT {return reverse_value(x);}
template<> inline double convert<order::little, order::native>(double x) BOOST_NOEXCEPT {return little_endian(x);} template<> inline double convert_value<order::little, order::native>(double x) BOOST_NOEXCEPT {return little_endian_value(x);}
template<> inline double convert<order::native, order::big>(double x) BOOST_NOEXCEPT {return big_endian(x);} template<> inline double convert_value<order::native, order::big>(double x) BOOST_NOEXCEPT {return big_endian_value(x);}
template<> inline double convert<order::native, order::little>(double x) BOOST_NOEXCEPT {return little_endian(x);} template<> inline double convert_value<order::native, order::little>(double x) BOOST_NOEXCEPT {return little_endian_value(x);}
inline BOOST_SCOPED_ENUM(order) actual_order(BOOST_SCOPED_ENUM(order) o) BOOST_NOEXCEPT inline BOOST_SCOPED_ENUM(order) actual_order(BOOST_SCOPED_ENUM(order) o) BOOST_NOEXCEPT
{ {
@@ -301,13 +323,13 @@ namespace endian
} }
template <class T> template <class T>
T convert(T from, BOOST_SCOPED_ENUM(order) from_order, T convert_value(T from, BOOST_SCOPED_ENUM(order) from_order,
BOOST_SCOPED_ENUM(order) to_order) BOOST_NOEXCEPT BOOST_SCOPED_ENUM(order) to_order) BOOST_NOEXCEPT
{ {
if (actual_order(from_order) == order::big) if (actual_order(from_order) == order::big)
return actual_order(to_order) == order::big ? from : reverse_bytes(from); return actual_order(to_order) == order::big ? from : reverse_value(from);
// actual from_order is little // actual from_order is little
return actual_order(to_order) == order::little ? from : reverse_bytes(from); return actual_order(to_order) == order::little ? from : reverse_value(from);
} }
} // namespace endian } // namespace endian

92
test/converter_test.cpp
View File

@@ -175,65 +175,65 @@ namespace
big_value(big); big_value(big);
little_value(little); little_value(little);
BOOST_TEST_EQ(be::reverse_bytes(big), little); BOOST_TEST_EQ(be::reverse_value(big), little);
BOOST_TEST_EQ(be::reverse_bytes(little), big); BOOST_TEST_EQ(be::reverse_value(little), big);
BOOST_TEST_EQ(be::reverse_bytes<T>(big), little); BOOST_TEST_EQ(be::detail::reverse_value<T>(big), little);
BOOST_TEST_EQ(be::reverse_bytes<T>(little), big); BOOST_TEST_EQ(be::detail::reverse_value<T>(little), big);
BOOST_TEST_EQ(be::big_endian(native), big); BOOST_TEST_EQ(be::big_endian_value(native), big);
BOOST_TEST_EQ(be::little_endian(native), little); BOOST_TEST_EQ(be::little_endian_value(native), little);
BOOST_TEST_EQ(be::big_endian(be::big_endian(native)), native); BOOST_TEST_EQ(be::big_endian_value(be::big_endian_value(native)), native);
BOOST_TEST_EQ(be::big_endian(be::big_endian(big)), big); BOOST_TEST_EQ(be::big_endian_value(be::big_endian_value(big)), big);
BOOST_TEST_EQ(be::big_endian(be::big_endian(little)), little); BOOST_TEST_EQ(be::big_endian_value(be::big_endian_value(little)), little);
BOOST_TEST_EQ(be::little_endian(be::little_endian(native)), native); BOOST_TEST_EQ(be::little_endian_value(be::little_endian_value(native)), native);
BOOST_TEST_EQ(be::little_endian(be::little_endian(big)), big); BOOST_TEST_EQ(be::little_endian_value(be::little_endian_value(big)), big);
BOOST_TEST_EQ(be::little_endian(be::little_endian(little)), little); BOOST_TEST_EQ(be::little_endian_value(be::little_endian_value(little)), little);
# ifdef BOOST_BIG_ENDIAN # ifdef BOOST_BIG_ENDIAN
BOOST_TEST_EQ(be::reverse_bytes(native), little); BOOST_TEST_EQ(be::reverse_value(native), little);
BOOST_TEST_EQ(be::reverse_bytes<T>(native), little); BOOST_TEST_EQ(be::detail::reverse_value<T>(native), little);
BOOST_TEST_EQ(be::big_endian(big), big); BOOST_TEST_EQ(be::big_endian_value(big), big);
BOOST_TEST_EQ(be::big_endian<T>(big), big); BOOST_TEST_EQ(be::big_endian_value<T>(big), big);
BOOST_TEST_EQ(be::big_endian(little), little); BOOST_TEST_EQ(be::big_endian_value(little), little);
BOOST_TEST_EQ(be::big_endian<T>(little), little); BOOST_TEST_EQ(be::big_endian_value<T>(little), little);
BOOST_TEST_EQ(be::big_endian(native), little); BOOST_TEST_EQ(be::big_endian_value(native), little);
BOOST_TEST_EQ(be::big_endian<T>(native), little); BOOST_TEST_EQ(be::big_endian_value<T>(native), little);
# else # else
BOOST_TEST_EQ(be::reverse_bytes(native), big); BOOST_TEST_EQ(be::reverse_value(native), big);
BOOST_TEST_EQ(be::reverse_bytes<T>(native), big); BOOST_TEST_EQ(be::detail::reverse_value<T>(native), big);
BOOST_TEST_EQ(be::big_endian(big), little); BOOST_TEST_EQ(be::big_endian_value(big), little);
BOOST_TEST_EQ(be::big_endian<T>(big), little); BOOST_TEST_EQ(be::big_endian_value<T>(big), little);
BOOST_TEST_EQ(be::big_endian(little), big); BOOST_TEST_EQ(be::big_endian_value(little), big);
BOOST_TEST_EQ(be::big_endian<T>(little), big); BOOST_TEST_EQ(be::big_endian_value<T>(little), big);
BOOST_TEST_EQ(be::big_endian(native), big); BOOST_TEST_EQ(be::big_endian_value(native), big);
BOOST_TEST_EQ(be::big_endian<T>(native), big); BOOST_TEST_EQ(be::big_endian_value<T>(native), big);
# endif # endif
// compile time order determination // compile time order determination
BOOST_TEST_EQ((be::convert<be::order::big, be::order::big>(big)), big); BOOST_TEST_EQ((be::convert_value<be::order::big, be::order::big>(big)), big);
BOOST_TEST_EQ((be::convert<be::order::little, be::order::little>(little)), little); BOOST_TEST_EQ((be::convert_value<be::order::little, be::order::little>(little)), little);
BOOST_TEST_EQ((be::convert<be::order::native, be::order::native>(native)), native); BOOST_TEST_EQ((be::convert_value<be::order::native, be::order::native>(native)), native);
BOOST_TEST_EQ((be::convert<be::order::big, be::order::little>(big)), little); BOOST_TEST_EQ((be::convert_value<be::order::big, be::order::little>(big)), little);
BOOST_TEST_EQ((be::convert<be::order::big, be::order::native>(big)), native); BOOST_TEST_EQ((be::convert_value<be::order::big, be::order::native>(big)), native);
BOOST_TEST_EQ((be::convert<be::order::little, be::order::big>(little)), big); BOOST_TEST_EQ((be::convert_value<be::order::little, be::order::big>(little)), big);
BOOST_TEST_EQ((be::convert<be::order::little, be::order::native>(little)), native); BOOST_TEST_EQ((be::convert_value<be::order::little, be::order::native>(little)), native);
BOOST_TEST_EQ((be::convert<be::order::native, be::order::big>(native)), big); BOOST_TEST_EQ((be::convert_value<be::order::native, be::order::big>(native)), big);
BOOST_TEST_EQ((be::convert<be::order::native, be::order::little>(native)), native); BOOST_TEST_EQ((be::convert_value<be::order::native, be::order::little>(native)), native);
// runtime order determination // runtime order determination
BOOST_TEST_EQ((be::convert(big, be::order::big, be::order::big)), big); BOOST_TEST_EQ((be::convert_value(big, be::order::big, be::order::big)), big);
BOOST_TEST_EQ((be::convert(little, be::order::little, be::order::little)), little); BOOST_TEST_EQ((be::convert_value(little, be::order::little, be::order::little)), little);
BOOST_TEST_EQ((be::convert(native, be::order::native, be::order::native)), native); BOOST_TEST_EQ((be::convert_value(native, be::order::native, be::order::native)), native);
BOOST_TEST_EQ((be::convert(big, be::order::big, be::order::little)), little); BOOST_TEST_EQ((be::convert_value(big, be::order::big, be::order::little)), little);
BOOST_TEST_EQ((be::convert(big, be::order::big, be::order::native)), native); BOOST_TEST_EQ((be::convert_value(big, be::order::big, be::order::native)), native);
BOOST_TEST_EQ((be::convert(little, be::order::little, be::order::big)), big); BOOST_TEST_EQ((be::convert_value(little, be::order::little, be::order::big)), big);
BOOST_TEST_EQ((be::convert(little, be::order::little, be::order::native)), native); BOOST_TEST_EQ((be::convert_value(little, be::order::little, be::order::native)), native);
BOOST_TEST_EQ((be::convert(native, be::order::native, be::order::big)), big); BOOST_TEST_EQ((be::convert_value(native, be::order::native, be::order::big)), big);
BOOST_TEST_EQ((be::convert(native, be::order::native, be::order::little)), native); BOOST_TEST_EQ((be::convert_value(native, be::order::native, be::order::little)), native);
} }
} // unnamed namespace } // unnamed namespace