Code:
#include <Trade\SymbolInfo.mqh>
//...
//...
CSymbolInfo Local_symbol;
Local_symbol.Name("EURUSD");
Local_symbol.RefreshRates();
double positionSize = RoundLotsizeDown(Local_symbol, 1.013548);
https://www.mql5.com/de/docs/standar...es/csymbolinfo