PerfectHashByLeo/Src/Defines.mqh

//+------------------------------------------------------------------+
//|                                                      Defines.mqh |
//|                                  Copyright 2026, Niquel Mendoza. |
//|                                            https://www.mql5.com/ |
//+------------------------------------------------------------------+
#property copyright "Copyright 2026, Niquel Mendoza."
#property link      "https://www.mql5.com/"
#property strict

#ifndef PERFECTHASHBYLEO_SRC_DEFINES_MQH
#define PERFECTHASHBYLEO_SRC_DEFINES_MQH

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
namespace TSN
{
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
// LAYOUT [12bit=NumElByBuckets][20bit=StarIndexBucket][32bit=Pos]
//---
#define TSN_PHBL_BIT_START_POS_I       (32)
#define TSN_PHBL_BIT_START_I_BUCKET    (12)
#define TSN_PHBL_MASK_COUNT            (0xFFF)
#define TSN_PHBL_MASK_INDEX_BUCKET     (0xFFFFF)

//---
#define TSN_PHBL_GET_COUNT(v)          int(v & TSN_PHBL_MASK_COUNT)
#define TSN_PHBL_GET_INDEX(v)          int((v >> TSN_PHBL_BIT_START_I_BUCKET) & TSN_PHBL_MASK_INDEX_BUCKET)
#define TSN_PHBL_GET_POS(v)            int(v >> TSN_PHBL_BIT_START_POS_I)

//---
#define TSN_PHBL_EMPAQUETAR(c, sib, p) (long(c) | long(sib) << TSN_PHBL_BIT_START_I_BUCKET | long(p) << TSN_PHBL_BIT_START_POS_I)

//---
#ifndef TSN_PHBL_MAX_SIZE_BUCKETS
#define TSN_PHBL_MAX_SIZE_BUCKETS 256
#endif // TSN_PHBL_MAX_SIZE_BUCKETS

//---



//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
template <typename TKey>
interface CPerfectHashHasher
 {
#ifdef TSN_PHBL_DESACTIVE_REF
  ulong Hash(const TKey v); // key a hash ulong
#else
  ulong Hash(const TKey& v); // key a hash ulong
#endif // TSN_PHBL_DESACTIVE_REF
 };

//+------------------------------------------------------------------+
template <typename TKey>
interface CPerfectHashHasherWSeed
 {
// key a hash ulong con seed
#ifdef TSN_PHBL_DESACTIVE_REF
  ulong Hash(const TKey v, const ulong seed);
#else
  ulong Hash(const TKey& v, const ulong seed);
#endif // TSN_PHBL_DESACTIVE_REF
 };
}
//+------------------------------------------------------------------+
#endif // PERFECTHASHBYLEO_SRC_DEFINES_MQH

//+------------------------------------------------------------------+