MT5 · Compiler warnings
MT5 66 · Using a variable or bool type expression in mathematical operations is unsafe | YI GOLD
Official meaning
Using a variable or bool type expression in mathematical operations is unsafe
Possible causes · YI GOLD suggestions
Determine the cause from the official meaning, the triggering function and terminal logs.
Troubleshooting · YI GOLD suggestions
Review the warning line, types, initialization and return values in MetaEditor. Evaluate runtime consequences and correct the warning even when compilation succeeds.