HashingUtils.h

 
#pragma once
 
#include <Foundation/Basics.h>
 
class PL_FOUNDATION_DLL plHashingUtils
{
public:
  static plUInt32 CRC32Hash(const void* pKey, size_t uiSizeInBytes); // [tested]
 
  static plUInt32 MurmurHash32(const void* pKey, size_t uiSizeInByte, plUInt32 uiSeed = 0); // [tested]
 
  static plUInt64 MurmurHash64(const void* pKey, size_t uiSizeInByte, plUInt64 uiSeed = 0); // [tested]
 
  template <size_t N>
  constexpr static plUInt32 MurmurHash32String(const char (&str)[N], plUInt32 uiSeed = 0); // [tested]
 
  static plUInt32 MurmurHash32String(plStringView sStr, plUInt32 uiSeed = 0); // [tested]
 
  static plUInt32 xxHash32(const void* pKey, size_t uiSizeInByte, plUInt32 uiSeed = 0); // [tested]
 
  static plUInt64 xxHash64(const void* pKey, size_t uiSizeInByte, plUInt64 uiSeed = 0); // [tested]
 
  template <size_t N>
  constexpr static plUInt32 xxHash32String(const char (&str)[N], plUInt32 uiSeed = 0); // [tested]
 
  template <size_t N>
  constexpr static plUInt64 xxHash64String(const char (&str)[N], plUInt64 uiSeed = 0); // [tested]
 
  static plUInt32 xxHash32String(plStringView sStr, plUInt32 uiSeed = 0); // [tested]
 
  static plUInt64 xxHash64String(plStringView sStr, plUInt64 uiSeed = 0); // [tested]
 
  template <size_t N>
  constexpr static plUInt64 StringHash(const char (&str)[N], plUInt64 uiSeed = 0); // [tested]
 
  static plUInt64 StringHash(plStringView sStr, plUInt64 uiSeed = 0); // [tested]
 
  constexpr static plUInt32 StringHashTo32(plUInt64 uiHash);
 
  constexpr static plUInt32 CombineHashValues32(plUInt32 ui0, plUInt32 ui1);
};
 
template <typename T>
struct plHashHelper
{
  template <typename U>
  static plUInt32 Hash(const U& value);
 
  template <typename U>
  static bool Equal(const T& a, const U& b);
};
 
#include <Foundation/Algorithm/Implementation/HashingMurmur_inl.h>
#include <Foundation/Algorithm/Implementation/HashingUtils_inl.h>
#include <Foundation/Algorithm/Implementation/HashingXxHash_inl.h>