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| Original file line number | Diff line number | Diff line change |
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| @@ -1,5 +1,7 @@ | ||
| build2019 | ||
| build2019_32 | ||
| build2022 | ||
| build2022_32 | ||
| build | ||
| codecov_report | ||
| *.log | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,70 @@ | ||
| #pragma once | ||
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| #include <string> | ||
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| #include "wyhash.h" | ||
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| namespace Excalibur | ||
| { | ||
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| // generic type (without implementation) | ||
| template <typename T> struct KeyInfo | ||
| { | ||
| // static inline T getTombstone() noexcept; | ||
| // static inline T getEmpty() noexcept; | ||
| // static inline size_t hash(const T& key) noexcept; | ||
| // static inline bool isEqual(const T& lhs, const T& rhs) noexcept; | ||
| // static inline bool isValid(const T& key) noexcept; | ||
| }; | ||
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| template <> struct KeyInfo<int32_t> | ||
| { | ||
| static inline bool isValid(const int32_t& key) noexcept { return key < INT32_C(0x7ffffffe); } | ||
| static inline int32_t getTombstone() noexcept { return INT32_C(0x7fffffff); } | ||
| static inline int32_t getEmpty() noexcept { return INT32_C(0x7ffffffe); } | ||
| static inline size_t hash(const int32_t& key) noexcept { return Excalibur::wyhash::hash(key); } | ||
| static inline bool isEqual(const int32_t& lhs, const int32_t& rhs) noexcept { return lhs == rhs; } | ||
| }; | ||
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| template <> struct KeyInfo<uint32_t> | ||
| { | ||
| static inline bool isValid(const uint32_t& key) noexcept { return key < UINT32_C(0xfffffffe); } | ||
| static inline uint32_t getTombstone() noexcept {return UINT32_C(0xfffffffe); } | ||
| static inline uint32_t getEmpty() noexcept {return UINT32_C(0xffffffff); } | ||
| static inline size_t hash(const uint32_t& key) noexcept { return Excalibur::wyhash::hash(key); } | ||
| static inline bool isEqual(const uint32_t& lhs, const uint32_t& rhs) noexcept { return lhs == rhs; } | ||
| }; | ||
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| template <> struct KeyInfo<int64_t> | ||
| { | ||
| static inline bool isValid(const int64_t& key) noexcept { return key < INT64_C(0x7ffffffffffffffe); } | ||
| static inline int64_t getTombstone() noexcept { return INT64_C(0x7fffffffffffffff); } | ||
| static inline int64_t getEmpty() noexcept { return INT64_C(0x7ffffffffffffffe); } | ||
| static inline size_t hash(const int64_t& key) noexcept { return Excalibur::wyhash::hash(key); } | ||
| static inline bool isEqual(const int64_t& lhs, const int64_t& rhs) noexcept { return lhs == rhs; } | ||
| }; | ||
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| template <> struct KeyInfo<uint64_t> | ||
| { | ||
| static inline bool isValid(const uint64_t& key) noexcept { return key < UINT64_C(0xfffffffffffffffe); } | ||
| static inline uint64_t getTombstone() noexcept { return UINT64_C(0xfffffffffffffffe); } | ||
| static inline uint64_t getEmpty() noexcept { return UINT64_C(0xffffffffffffffff); } | ||
| static inline size_t hash(const uint64_t& key) noexcept { return Excalibur::wyhash::hash(key); } | ||
| static inline bool isEqual(const uint64_t& lhs, const uint64_t& rhs) noexcept { return lhs == rhs; } | ||
| }; | ||
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| template <> struct KeyInfo<std::string> | ||
| { | ||
| static inline bool isValid(const std::string& key) noexcept { return !key.empty() && key.data()[0] != char(1); } | ||
| static inline std::string getTombstone() noexcept | ||
| { | ||
| // and let's hope that small string optimization will do the job | ||
| return std::string(1, char(1)); | ||
| } | ||
| static inline std::string getEmpty() noexcept { return std::string(); } | ||
| static inline size_t hash(const std::string& key) noexcept { return std::hash<std::string>{}(key); } | ||
| static inline bool isEqual(const std::string& lhs, const std::string& rhs) noexcept { return lhs == rhs; } | ||
| }; | ||
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| } // namespace Excalibur |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,113 @@ | ||
| #pragma once | ||
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| #include <stdint.h> | ||
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| #if defined(_MSC_VER) | ||
| #define EXLBR_VISUAL_STUDIO (1) | ||
| #define EXLBR_FORCE_INLINE __forceinline | ||
| #endif | ||
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| #if defined(__clang__) | ||
| #define EXLBR_CLANG (1) | ||
| #define EXLBR_FORCE_INLINE __attribute__((always_inline)) | ||
| #endif | ||
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| #if defined(__GNUC__) | ||
| #define EXLBR_GCC (1) | ||
| #endif | ||
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| #if defined(_M_X64) || defined(__aarch64__) || defined(__x86_64__) || defined(__x86_64) || defined(__amd64__) || defined(__amd64) || \ | ||
| defined(__LP64__) || defined(_WIN64) | ||
| #define EXLBR_64 (1) | ||
| #else | ||
| #define EXLBR_32 (1) | ||
| #endif | ||
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| #if EXLBR_VISUAL_STUDIO | ||
| #include <intrin.h> | ||
| #endif | ||
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| namespace Excalibur | ||
| { | ||
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| namespace wyhash | ||
| { | ||
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| #if EXLBR_64 | ||
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| inline uint64_t _hash64(uint64_t v) | ||
| { | ||
| #if EXLBR_VISUAL_STUDIO | ||
| { | ||
| uint64_t h; | ||
| uint64_t l = _umul128(v, UINT64_C(0x9E3779B97F4A7C15), &h); | ||
| return l ^ h; | ||
| } | ||
| #elif | ||
| { | ||
| __uint128_t r = v; | ||
| r *= UINT64_C(0x9E3779B97F4A7C15); | ||
| return (uint64_t)(r >> 64U) ^ (uint64_t)(r); | ||
| } | ||
| #else | ||
| { | ||
| #error Unsupported compiler or platform | ||
| } | ||
| #endif | ||
| } | ||
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| #elif EXLBR_32 | ||
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| inline uint32_t _hash32(uint32_t v) | ||
| { | ||
| #if EXLBR_VISUAL_STUDIO | ||
| { | ||
| uint64_t lh = __emulu(v, UINT32_C(0x9e3779b1)); | ||
| return (uint32_t)(lh >> 32U) ^ (uint32_t)(lh); | ||
| } | ||
| #elif | ||
| { | ||
| uint64_t lh = uint64_t(v) * uint64_t(0x9e3779b1); | ||
| return (uint32_t)(lh >> 32U) ^ (uint32_t)(lh); | ||
| } | ||
| #else | ||
| { | ||
| #error Unsupported compiler or platform | ||
| } | ||
| #endif | ||
| } | ||
| #else | ||
| #error Unsupported compiler or platform | ||
| #endif | ||
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| inline size_t hash(uint64_t v) | ||
| { | ||
| #if EXLBR_64 | ||
| return _hash64(v); | ||
| #elif EXLBR_32 | ||
| uint32_t vv = (uint32_t)(v >> 32U) ^ (uint32_t)(v); | ||
| return _hash32(vv); | ||
| #else | ||
| #error Unsupported compiler or platform | ||
| #endif | ||
| } | ||
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| inline size_t hash(uint32_t v) | ||
| { | ||
| #if EXLBR_64 | ||
| return _hash64(uint64_t(v)); | ||
| #elif EXLBR_32 | ||
| return _hash32(v); | ||
| #else | ||
| #error Unsupported compiler or platform | ||
| #endif | ||
| } | ||
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| inline size_t hash(int64_t v) { return hash(uint64_t(v)); } | ||
| inline size_t hash(int32_t v) { return hash(uint32_t(v)); } | ||
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| } // namespace wyhash | ||
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| } // namespace Excalibur |
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