Difference between "extern" variable type in mql4 vs mql5 - page 2

 
Vladislav Boyko #:

What do you mean by "static"?

Are you saying that variable 'a' is static?

He misspoke. He meant read-only.

 
William Roeder #:

He misspoke. He meant read-only.

I did indeed, I meant they are a constant