// Discussion of article "Limitations and Verifications in Expert Advisors"

New article Limitations and Verifications in Expert Advisors is published:

Author: MetaQuotes

Due to changes in MQL5, now the maximal overall volume allowed for one symbol can be obtained as following:

//--- get symbol limitation for volume
   double max_volume=SymbolInfoDouble(Symbol(),SYMBOL_VOLUME_LIMIT);

Do not use the old variant! It was like this:

//--- get symbol limitation for volume
   double max_volume=AccountInfoDouble(ACCOUNT_LIMIT_VOLUME);

(build 306)

void OnStart()
{
double max_volume=SymbolInfoDouble(Symbol(),SYMBOL_VOLUME_LIMIT);
}

compile errors: 

 'SYMBOL_VOLUME_LIMIT' - undeclared identifier test.mq5 4 46
'SymbolInfoDouble' - no one of the overloads can be applied to the function call test.mq5 4 20