Actually, there is nothing more to add to the description. The function is simple, it creates a list of currency pair symbols by iterating over the combinations of the abbreviated names of the currencies contained in the Currencies array. This array contains most currencies, if necessary, more can be added.
Write at the beginning of the text:
#import "SymbolLister.ex4" string Symbols; int SymbolCount; int CreateSymbolList()
Write in the initialization function
Use the Symbols symbol array and the number of found symbols SymbolCount.
I cut this function out of my EA, have not tested it as a separate library, as a last resort, all this can be inserted into the code and it works fine.
Translated from Russian by MetaQuotes Software Corp.
Original code: https://www.mql5.com/ru/code/7111
The Acceleration/Deceleration Indicator (AC) measures acceleration and deceleration of the current driving force.Average Directional Movement Index (ADX)
The Average Directional Movement Index Indicator (ADX) helps to determine if there is a price trend.