Re: [avr-llvm-devel] Flash data

[John M. <ato...@gm...>]

> 1) Cannot write to flash memory. <-- emitted when trying to assign a value
> to a flash var
>
The error for a const being assigned a value is "error: read-only variable
is not assignable" so I would make the wording consistent and just do...

      "error: Flash variable is not assignable"       ...or...
      "error: __flash qualified variable is not assignable"


> 2) Flash variables are read only and should be declared with a const
> qualifier. <-- emitted when doing something like __flash int, we want
> __flash const int
>

Something like the below and then also have one of those clang fix-it hints
showing const being added.

   "error: Flash variable requires const qualifier"

3) The pointee type of a flash pointer should be declared with a const
> qualifier. <-- i cant think of a better way of saying it, this is emitted
> when doing __flash int* ptr, we want __flash const int *ptr.
>

I think this can be the same as or similar to #2 and again use the fix-it
hint to show explicitly where the const needs to be placed.