why do I get this error although I have an operator in my code?

Question

In MQL4, I have the following line

int OP_TYPE = int(0.5((1+f)*OP_BUY+(1-f)*OP_SELL));

which gives the error: '+' - some operator expected.

What am I supposed to do in this case?

Answer 1

You cannot infer calc types using MQL4, make sure you explicitly type your calculation in full.

int OP_TYPE = int(0.5*((1+f)*OP_BUY+(1-f)*OP_SELL));