62 lines
2.2 KiB
MQL5
62 lines
2.2 KiB
MQL5
|
//+------------------------------------------------------------------+
|
||
|
|
//| MurMur.mqh |
|
||
|
|
//| Copyright 2026, Niquel Mendoza. |
|
||
|
|
//| https://www.mql5.com/ |
|
||
|
|
//+------------------------------------------------------------------+
|
||
|
|
#property copyright "Copyright 2026, Niquel Mendoza."
|
||
|
|
#property link "https://www.mql5.com/"
|
||
|
|
#property strict
|
||
|
|
|
||
|
|
#ifndef SIMPHASH_SRC_HASH_UL1_MURMUR_MQH
|
||
|
|
#define SIMPHASH_SRC_HASH_UL1_MURMUR_MQH
|
||
|
|
|
||
|
|
//+------------------------------------------------------------------+
|
||
|
|
//| |
|
||
|
|
//+------------------------------------------------------------------+
|
||
|
|
#include "..\\Def.mqh"
|
||
|
|
|
||
|
|
//+------------------------------------------------------------------+
|
||
|
|
//| |
|
||
|
|
//+------------------------------------------------------------------+
|
||
|
|
namespace TSN
|
||
|
|
{
|
||
|
|
//+------------------------------------------------------------------+
|
||
|
|
//| |
|
||
|
|
//+------------------------------------------------------------------+
|
||
|
|
class CHash1MurMur : public IHashGeneratorWSeed
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
CHash1MurMur(void) {}
|
||
|
|
~CHash1MurMur(void) {}
|
||
|
|
|
||
|
|
ulong Hash(const ulong v, const ulong seed) override final
|
||
|
|
{
|
||
|
|
ulong h = v ^ seed;
|
||
|
|
h ^= h >> 16;
|
||
|
|
h *= 0x45d9f3b37197344d;
|
||
|
|
h ^= h >> 16;
|
||
|
|
h *= 0x45d9f3b37197344d;
|
||
|
|
h ^= h >> 16;
|
||
|
|
return h;
|
||
|
|
}
|
||
|
|
|
||
|
|
void BuildString(string& data, const string& table_seeds_name) override final
|
||
|
|
{
|
||
|
|
data += "//---\r\n";
|
||
|
|
data += StringFormat(" ulong h = key_hash ^ %s[seed_index];\r\n", table_seeds_name);
|
||
|
|
data += " h ^= h >> 16;\r\n";
|
||
|
|
data += " h *= 0x45d9f3b37197344d;\r\n";
|
||
|
|
data += " h ^= h >> 16;\r\n";
|
||
|
|
data += " h *= 0x45d9f3b37197344d;\r\n";
|
||
|
|
data += " h ^= h >> 16;\r\n";
|
||
|
|
data += "\r\n";
|
||
|
|
}
|
||
|
|
void AddIncludes(string& data) override final
|
||
|
|
{
|
||
|
|
// Nada
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
}
|
||
|
|
//+------------------------------------------------------------------+
|
||
|
|
#endif // SIMPHASH_SRC_HASH_UL1_MURMUR_MQH
|