Zero divide after EA / MT4 restart

[Mantadiver]

Hello,

I am testing an EA to ensure it can cope with an MT4 restart.

After a restart I am getting zero divide errors.

The first is in a custom mql block at the point:- MarketInfo(Symbol(),MODE_TICKVALUE)
It finds the correct value when run normally but after a restart it returns zero. (I have got it to write to the log on restart).

If I remove that piece of code it then gets stuck on an internal function LotStep.

lowerlots = MathRound(lowerlots/LotStep)*LotStep;

which can be traced back to:-

double LotStep = SymbolInfoDouble(symbol, SYMBOL_VOLUME_STEP);

Again it is the SYMBOL_VOLUME_STEP that is returning a zero.

Any ideas why this would work on first load but not after a restart ?

Many thanks

[miro1360]

you can avoid this issue with adding if else statement ...

double LotStep = SymbolInfoDouble(symbol, SYMBOL_VOLUME_STEP);
if (LotStep != 0)
{ lowerlots = MathRound(lowerlots/LotStep)*LotStep; }
else { lowerlots = some_default_value; )

[Mantadiver]

Works great, many thanks.