[Issue 1679] New: D should cast char[] to char* when used in a variadic argument in extern(C) context

[Brad Roberts]

On Tue, 20 Nov 2007, d-bugmail at puremagic.com wrote:

>   When the "-c" argument is sent as the first
> argument of the variadic part, D sends a char[] and not a char*, meaning
> that it puts 2, "-c" on the stack, which confuses the C.
>   I believe that D should do the implicit cast in that case, as it'll
> break a _lot_ of programs using C APIs and variadic arguments in very
> subtle ways.

It would only potentially be safe to implicitly do this for literals.  In 
D, char[]'s don't necessairily have a null terminating byte.  Literals do.  
This implicit cast used to exist and was removed due to it being fairly 
unsafe to do in the general case.