Re: [avr-gcc-list] Deprecated warning on 3.4.1

[David Gay]

Harald Kipp wrote:
> At
>
>   *dst++ = *((unsigned char *) src)++;
>
> the compiler 3.4.1 (WinAVR) mumbles
>
>   warning: use of cast expressions as lvalues is deprecated
>
> But there is no casted lvalue. Looks like he doesn't like
>
>   ((cast_t *)var)++
>
> Am I doing something nasty here?

++ binds tighter than *, so you've done:

  dereference the incremented cast of src to unsigned char *

(and so you are indeed using the result of a cast as an lvalue)

You presumably wanted

  (*((unsigned char *)src))++

which is

  increment the dereference of the cast of src to unsigned char *

David Gay