Re: A: a new bug to old plain C

> Further I also assume that you don't see compiler warnings as disagreeing with you? like in
> 
> char *a;
>  int b = a;
> # warning: initialization of ‘int’ from ‘char *’ makes integer from pointer without a cast [-Wint-conversion]

Well, once again: language-wise this is a constraint violation, i.e. a hard error.

The fact that it is reported as a "warning" simply means that your compiler is configured 
to issue a non-aborting diagnostic message for this error (aka "warning"). It is just 
a quirk of the compiler.

-- 
Best regards,
Andrey