C2450: How do I fix this error?

[checkers]

The help files says "Check to see if you are using the right compiler lanquage option."

Where do I find that option? I've looked in preferences.

[checkers]

bool PB_Talk_var;

Isn't bool a valid type?

[checkers · Accepted solution]

OK. After some brute force learning I found the answer. K&R.