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Sprout/sprout/endian_traits.hpp
bolero-MURAKAMI 0f8db75fca sprout/checksum/sha1.hpp 追加
sprout/null_array.hpp -> sprout/pit.hpp リネーム
sprout/uuid.hpp 追加
2011-10-25 18:16:27 +09:00

47 lines
1 KiB
C++

#ifndef SPROUT_ENDIAN_TRAITS_HPP
#define SPROUT_ENDIAN_TRAITS_HPP
#include <cstddef>
#include <climits>
#include <sprout/config.hpp>
namespace sprout {
//
// big_endian_traits
//
template<typename T>
class big_endian_traits {
public:
typedef T type;
public:
static SPROUT_CONSTEXPR std::size_t size() {
return sizeof(type);
}
static SPROUT_CONSTEXPR unsigned char get_byte(type const& t, std::size_t i) {
return static_cast<unsigned char>(
(t & (UCHAR_MAX << CHAR_BIT * ((size() - 1) - i)))
>> CHAR_BIT * ((size() - 1) - i)
);
}
};
//
// little_endian_traits
//
template<typename T>
class little_endian_traits {
public:
typedef T type;
public:
static SPROUT_CONSTEXPR std::size_t size() {
return sizeof(type);
}
static SPROUT_CONSTEXPR unsigned char get_byte(type const& t, std::size_t i) {
return static_cast<unsigned char>(
(t & (UCHAR_MAX << CHAR_BIT * i))
>> CHAR_BIT * i
);
}
};
} // namespace sprout
#endif // #ifndef SPROUT_ENDIAN_TRAITS_HPP