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functional/hash.hpp 追加

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random/unique_seed.hpp 追加
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bolero-MURAKAMI 2011-09-29 12:58:55 +09:00
parent 1ebc833ea8
commit 305ae86d92
11 changed files with 381 additions and 0 deletions
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#ifndef SPROUT_FUNCTIONAL_HASH_HPP
#define SPROUT_FUNCTIONAL_HASH_HPP
#include <sprout/config.hpp>
#include <sprout/functional/hash/hash.hpp>
#endif // #ifndef SPROUT_FUNCTIONAL_HASH_HPP

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#ifndef SPROUT_FUNCTIONAL_HASH_ARRAY_HPP
#define SPROUT_FUNCTIONAL_HASH_ARRAY_HPP
#include <cstddef>
#include <sprout/config.hpp>
#include <sprout/functional/hash/hash.hpp>
#include <sprout/array.hpp>
namespace sprout {
template<typename T, std::size_t N>
SPROUT_CONSTEXPR std::size_t hash_value(sprout::array<T, N> const& v) {
return sprout::hash_range(v.begin(), v.end());
}
} // namespace sprout
#endif // #ifndef SPROUT_FUNCTIONAL_HASH_ARRAY_HPP

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#ifndef SPROUT_FUNCTIONAL_HASH_HPP
#define SPROUT_FUNCTIONAL_HASH_HPP
#include <cstddef>
#include <limits>
#include <sprout/config.hpp>
#include <sprout/functional/hash/hash_fwd.hpp>
namespace sprout {
//
// hash_value
//
SPROUT_CONSTEXPR inline std::size_t hash_value(bool v);
SPROUT_CONSTEXPR inline std::size_t hash_value(char v);
SPROUT_CONSTEXPR inline std::size_t hash_value(wchar_t v);
SPROUT_CONSTEXPR inline std::size_t hash_value(unsigned char v);
SPROUT_CONSTEXPR inline std::size_t hash_value(signed char v);
SPROUT_CONSTEXPR inline std::size_t hash_value(short v);
SPROUT_CONSTEXPR inline std::size_t hash_value(unsigned short v);
SPROUT_CONSTEXPR inline std::size_t hash_value(int v);
SPROUT_CONSTEXPR inline std::size_t hash_value(unsigned int v);
SPROUT_CONSTEXPR inline std::size_t hash_value(long v);
SPROUT_CONSTEXPR inline std::size_t hash_value(unsigned long v);
SPROUT_CONSTEXPR inline std::size_t hash_value(long long v);
SPROUT_CONSTEXPR inline std::size_t hash_value(unsigned long long v);
//SPROUT_CONSTEXPR std::size_t inline hash_value(float v);
//SPROUT_CONSTEXPR std::size_t inline hash_value(double v);
//SPROUT_CONSTEXPR std::size_t inline hash_value(long double v);
template<typename T>
SPROUT_CONSTEXPR std::size_t hash_value(T*);
template<typename T, std::size_t N>
SPROUT_CONSTEXPR std::size_t hash_value(T const (&v)[N]);
namespace hash_detail {
template<typename T>
SPROUT_CONSTEXPR std::size_t hash_value_signed_2(T val, int length, std::size_t seed, T positive, std::size_t i) {
return i > 0
? hash_value_signed_2(
val,
length,
seed ^ static_cast<std::size_t>((positive >> i) + (seed << 6) + (seed >> 2)),
positive,
i - std::numeric_limits<std::size_t>::digits
)
: seed ^ static_cast<std::size_t>(val + (seed << 6) + (seed >> 2))
;
}
template<typename T>
SPROUT_CONSTEXPR std::size_t hash_value_signed_1(T val, int length, std::size_t seed, T positive) {
return hash_value_signed_2(val, length, seed, positive, length * std::numeric_limits<std::size_t>::digits);
}
template<typename T>
SPROUT_CONSTEXPR std::size_t hash_value_signed(T val) {
return sprout::hash_detail::hash_value_signed_1(
val,
(std::numeric_limits<T>::digits - 1) / std::numeric_limits<std::size_t>::digits,
0,
val < 0 ? -1 - val : val
);
}
template<typename T>
SPROUT_CONSTEXPR std::size_t hash_value_unsigned_2(T val, int length, std::size_t seed, std::size_t i) {
return i > 0
? hash_value_unsigned_2(
val,
length,
seed ^ static_cast<std::size_t>((val >> i) + (seed << 6) + (seed >> 2)),
i - std::numeric_limits<std::size_t>::digits
)
: seed ^ static_cast<std::size_t>(val + (seed << 6) + (seed >> 2))
;
}
template<typename T>
SPROUT_CONSTEXPR std::size_t hash_value_unsigned_1(T val, int length, std::size_t seed) {
return hash_value_unsigned_2(val, length, seed, length * std::numeric_limits<std::size_t>::digits);
}
template<typename T>
SPROUT_CONSTEXPR std::size_t hash_value_unsigned(T val) {
return sprout::hash_detail::hash_value_unsigned_1(
val,
(std::numeric_limits<T>::digits - 1) / std::numeric_limits<std::size_t>::digits,
0
);
}
SPROUT_CONSTEXPR inline std::size_t hash_value_pointer_1(std::size_t x) {
return x + (x >> 3);
}
template<typename T>
SPROUT_CONSTEXPR std::size_t hash_value_pointer(T* v) {
return sprout::hash_detail::hash_value_pointer_1(static_cast<std::size_t>(reinterpret_cast<std::ptrdiff_t>(v)));
}
} // namespace hash_detail
//
// hash_value
//
SPROUT_CONSTEXPR inline std::size_t hash_value(bool v) {
return static_cast<std::size_t>(v);
}
SPROUT_CONSTEXPR inline std::size_t hash_value(char v) {
return static_cast<std::size_t>(v);
}
SPROUT_CONSTEXPR inline std::size_t hash_value(wchar_t v) {
return static_cast<std::size_t>(v);
}
SPROUT_CONSTEXPR inline std::size_t hash_value(unsigned char v) {
return static_cast<std::size_t>(v);
}
SPROUT_CONSTEXPR inline std::size_t hash_value(signed char v) {
return static_cast<std::size_t>(v);
}
SPROUT_CONSTEXPR inline std::size_t hash_value(short v) {
return static_cast<std::size_t>(v);
}
SPROUT_CONSTEXPR inline std::size_t hash_value(unsigned short v) {
return static_cast<std::size_t>(v);
}
SPROUT_CONSTEXPR inline std::size_t hash_value(int v) {
return static_cast<std::size_t>(v);
}
SPROUT_CONSTEXPR inline std::size_t hash_value(unsigned int v) {
return static_cast<std::size_t>(v);
}
SPROUT_CONSTEXPR inline std::size_t hash_value(long v) {
return static_cast<std::size_t>(v);
}
SPROUT_CONSTEXPR inline std::size_t hash_value(unsigned long v) {
return static_cast<std::size_t>(v);
}
SPROUT_CONSTEXPR inline std::size_t hash_value(long long v) {
return sprout::hash_detail::hash_value_signed(v);
}
SPROUT_CONSTEXPR inline std::size_t hash_value(unsigned long long v) {
return sprout::hash_detail::hash_value_unsigned(v);
}
template<typename T>
SPROUT_CONSTEXPR std::size_t hash_value(T* v) {
return sprout::hash_detail::hash_value_pointer(v);
}
template<typename T, std::size_t N >
SPROUT_CONSTEXPR std::size_t hash_value(T const (&v)[N]) {
return sprout::hash_range(&v[0], &v[0] + N);
}
//
// hash_combine
//
template<typename T>
SPROUT_CONSTEXPR std::size_t hash_combine(std::size_t seed, T const& v) {
return seed ^ (sprout::hash<T>()(v) + 0x9e3779b9 + (seed << 6) + (seed >> 2));
}
//
// hash_range
//
template<typename Iterator>
SPROUT_CONSTEXPR std::size_t hash_range(Iterator first, Iterator last) {
return sprout::hash_range(0, first, last);
}
template<typename Iterator>
SPROUT_CONSTEXPR std::size_t hash_range(std::size_t seed, Iterator first, Iterator last) {
return first != last
? sprout::hash_range(sprout::hash_combine(seed, *first), first + 1, last)
: seed
;
}
#define SPROUT_HASH_SPECIALIZE(type) \
template<> \
struct hash<type> { \
public: \
typedef type argument_type; \
typedef std::size_t result_type; \
public: \
SPROUT_CONSTEXPR std::size_t operator()(type v) const { \
return sprout::hash_value(v); \
} \
}
#define SPROUT_HASH_SPECIALIZE_REF(type) \
template<> \
struct hash<type> { \
public: \
typedef type argument_type; \
typedef std::size_t result_type; \
public: \
SPROUT_CONSTEXPR std::size_t operator()(type const& v) const { \
return sprout::hash_value(v); \
} \
}
//
// hash
//
SPROUT_HASH_SPECIALIZE(bool);
SPROUT_HASH_SPECIALIZE(char);
SPROUT_HASH_SPECIALIZE(wchar_t);
SPROUT_HASH_SPECIALIZE(signed char);
SPROUT_HASH_SPECIALIZE(unsigned char);
SPROUT_HASH_SPECIALIZE(short);
SPROUT_HASH_SPECIALIZE(unsigned short);
SPROUT_HASH_SPECIALIZE(int);
SPROUT_HASH_SPECIALIZE(unsigned int);
SPROUT_HASH_SPECIALIZE(long);
SPROUT_HASH_SPECIALIZE(unsigned long);
SPROUT_HASH_SPECIALIZE(long long);
SPROUT_HASH_SPECIALIZE(unsigned long long);
#undef SPROUT_HASH_SPECIALIZE
#undef SPROUT_HASH_SPECIALIZE_REF
template <class T>
struct hash<T*> {
public:
typedef T* argument_type;
typedef std::size_t result_type;
public: \
SPROUT_CONSTEXPR std::size_t operator()(T* v) const {
return sprout::hash_value(v);
}
};
} //namespace sprout
#endif // #ifndef SPROUT_FUNCTIONAL_HASH_HPP

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#ifndef SPROUT_FUNCTIONAL_HASH_HASH_FWD_HPP
#define SPROUT_FUNCTIONAL_HASH_HASH_FWD_HPP
#include <cstddef>
#include <sprout/config.hpp>
namespace sprout {
//
// hash
//
template<typename T>
struct hash;
//
// hash_combine
//
template<typename T>
SPROUT_CONSTEXPR std::size_t hash_combine(std::size_t seed, T const& v);
//
// hash_range
//
template<typename Iterator>
SPROUT_CONSTEXPR std::size_t hash_range(Iterator first, Iterator last);
template<typename Iterator>
SPROUT_CONSTEXPR std::size_t hash_range(std::size_t seed, Iterator first, Iterator last);
} // namespace sprout
#endif // #ifndef SPROUT_FUNCTIONAL_HASH_HASH_FWD_HPP

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#ifndef SPROUT_FUNCTIONAL_HASH_SSCRISK_CEL_ARRAY_HPP
#define SPROUT_FUNCTIONAL_HASH_SSCRISK_CEL_ARRAY_HPP
#include <cstddef>
#include <sprout/config.hpp>
#include <sprout/functional/hash/hash.hpp>
#include <sscrisk/cel/array.hpp>
namespace sprout {
template<typename T, std::size_t N>
SPROUT_CONSTEXPR std::size_t hash_value(sscrisk::cel::array<T, N> const& v) {
return sprout::hash_range(v.begin(), v.end());
}
} // namespace sprout
#endif // #ifndef SPROUT_FUNCTIONAL_HASH_SSCRISK_CEL_ARRAY_HPP

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#ifndef SPROUT_FUNCTIONAL_HASH_STRING_HPP
#define SPROUT_FUNCTIONAL_HASH_STRING_HPP
#include <cstddef>
#include <sprout/config.hpp>
#include <sprout/functional/hash/hash.hpp>
#include <sprout/string.hpp>
namespace sprout {
template<typename T, std::size_t N, typename Traits = sprout::char_traits<T> >
SPROUT_CONSTEXPR std::size_t hash_value(sprout::basic_string<T, N, Traits> const& v) {
return sprout::hash_range(v.begin(), v.end());
}
} // namespace sprout
#endif // #ifndef SPROUT_FUNCTIONAL_HASH_STRING_HPP

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#ifndef SPROUT_FUNCTIONAL_HASH_SUB_ARRAY_HPP
#define SPROUT_FUNCTIONAL_HASH_SUB_ARRAY_HPP
#include <cstddef>
#include <sprout/config.hpp>
#include <sprout/functional/hash/hash.hpp>
#include <sprout/sub_array.hpp>
namespace sprout {
template<typename Container>
SPROUT_CONSTEXPR std::size_t hash_value(sprout::sub_array<Container> const& v) {
return sprout::hash_range(v.begin(), v.end());
}
} // namespace sprout
#endif // #ifndef SPROUT_FUNCTIONAL_HASH_SUB_ARRAY_HPP

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#ifndef SPROUT_FUNCTIONAL_HASH_FWD_HPP
#define SPROUT_FUNCTIONAL_HASH_FWD_HPP
#include <sprout/config.hpp>
#include <sprout/functional/hash/hash_fwd.hpp>
#endif // #ifndef SPROUT_FUNCTIONAL_HASH_FWD_HPP

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#ifndef SPROUT_PREPROCESSOR_STRINGIZE_HPP
#define SPROUT_PREPROCESSOR_STRINGIZE_HPP
#include <sprout/config.hpp>
#define SPROUT_PP_STRINGIZE_I(text) #text
//
// SPROUT_PP_STRINGIZE
//
#define SPROUT_PP_STRINGIZE(text) SPROUT_PP_STRINGIZE_I(text)
#endif // #ifndef SPROUT_PREPROCESSOR_STRINGIZE_HPP

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#ifndef SPROUT_PREPROCESSOR_UNIQUE_STRING_HPP
#define SPROUT_PREPROCESSOR_UNIQUE_STRING_HPP
#include <sprout/config.hpp>
#include <sprout/preprocessor/stringize.hpp>
//
// SPROUT_PP_UNIQUE_STRING
//
#define SPROUT_PP_UNIQUE_STRING __DATE__ " " __TIME__ " : " __FILE__ "(" SPROUT_PP_STRINGIZE(__LINE__) ")"
#endif // #ifndef SPROUT_PREPROCESSOR_UNIQUE_STRING_HPP

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#ifndef SPROUT_RANDOM_UNIQUE_SEED_HPP
#define SPROUT_RANDOM_UNIQUE_SEED_HPP
#include <sprout/config.hpp>
#include <sprout/functional/hash/hash.hpp>
#include <sprout/preprocessor/unique_string.hpp>
//
// SPROUT_UNIQUE_SEED
//
#define SPROUT_UNIQUE_SEED (::sprout::hash_value(SPROUT_PP_UNIQUE_STRING))
#endif // #ifndef SPROUT_RANDOM_UNIQUE_SEED_HPP