2026-07-19 13:23:27 +00:00
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# FastCollectionsByLeo
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2026-07-19 08:35:09 -05:00
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### Generic
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### Fast HashMap
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```mql5
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void OnStart()
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{
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CHashMapFast(string, int) map;
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map.Add("hola", 10);
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map.Add("cinco", 10);
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map.Add("My key:", 20);
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map.Add("Yo: ", 20);
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CHashMapFastIterator(string, int) it = map.BeginIteration();
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while(it.IsValid())
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{
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Print(it.Key(), " = ", it.Val());
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it.Next();
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}
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}
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```
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### Hash map benchmarks
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- Access test over 100,000 iterations
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- Converting `ENUM_TIMEFRAMES` (string) to integer
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- Same PC used for all tests
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| Class | Time (microseconds, 100,000 iterations) |
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|------------------|-------------------------------------------|
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| **Perfect Hash** | ~1705 |
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| **CHashMapFast** | 1925<32>1949 |
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| **CDictSValue** | 2438<33>2466 |
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| **CHashMap** | 8750<35>8827 |
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| **Linear** | 9818<31>9869 |
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> Test in [Final.mq5](./Collections/Test/Final.mq5)
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