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CDictionary
Info
The CDictionary is a Library for MetaTrader 5 that an implementation of the dictionary (associative array) data structure in mql5, based on and. Hash Function FNV-1aUsage Primitives:It can also store pointers to objects (but not objects or structures):Collision Handling Each entry would have its own hash.
Usage
This tool is typically used for enhancing chart analysis and decision making.
Platform
This Library works exclusively on MetaTrader 5 (both build 600+ and newer versions).
Setup
Place the downloaded file in MQL5/Libraries folder via File ? Open Data Folder in MetaTrader 5.
How to Install and Use CDictionary
1. Storage: Place library files in the MQL/Libraries directory to ensure they are accessible to your projects.
2. Implementation: Include the library in your code using the #import directive, ensuring you match the exact function names and parameters.
3. Compilation: Ensure the library is present in the directory before you compile your main EA or script, as the compiler links them during this phase.
4. Management: Keep libraries organized in sub-folders if you manage many custom functions to maintain a clean project structure.
Frequently Asked Questions
Q: What is a library file used for? A: Libraries store reusable code modules, allowing you to centralize common logic used by multiple EAs or indicators.
Q: Is a library executable? A: No, libraries are non-executable files containing functions; they must be imported into an EA, indicator, or script to function.
Q: Can I update a library while the platform is running? A: You should compile your EA or script after updating a library to ensure the latest code changes are integrated.
What this tool does
An implementation of the dictionary (associative array) data structure in MQL5, based on and.
Typical Use Case
This Library excels in automated trading and technical analysis on MetaTrader 5.
Compatible Platform & Setup
This Library works on MetaTrader 5. Place the file in the MQL5/Libraries folder and restart the terminal.
Description & Settings
Related: Sub Window - another powerful library for MetaTrader 5 traders.
An implementation of the dictionary (associative array) data structure in MQL5, based on and .
Hash Function
FNV-1a
Usage
Primitives:
Also recommended: CSelect File - similar library with strong performance on MetaTrader 5.
It can also store pointers to objects (but not objects or structures):Collision Handling
Each entry would have its own hash.
If two or more entries share the same hash, entries are compared by key and typename. This makes it possible to store multiple entries with the same key (but different type).
When using Set<T>, if there is already an existing entry with the same key and type, the passed value would be treated as a replacement of an existing entry (not a new one). This also applies to pointers.
You may also like: A powerful and feature-rich JS O N library for MQ L5, designed to bring a modern development experience similar to Python/JS - excellent alternative for library users on MetaTrader 5.
⚠ Limitations & Risk Warning
- This tool is provided for educational and testing purposes only.
- Past performance does not guarantee future results.
- Trading involves substantial risk of loss. Use on a demo account first.
- Results may vary depending on market conditions, broker, and settings.
- We recommend thorough backtesting and forward testing before using with real funds.