C compatibility

[Jacob Carlborg]

I've read posts in several threads complaining about the C 
compatibility, the latest was the % operator. Other complains are that 
you can use the C syntax for pointers, arrays and function pointers. 
Also the "Case range statement" thread that complained (among other 
things) about fall through in switch statements.

Why not the drop this C compatibility in general case but still allow 
the C compatibility in extern (C) blocks?

/Jacob Carlborg