[PATCH 02/02] C FE: add fix-it hint for . vs ->

[Joseph Myers]

On Tue, 10 Nov 2015, David Malcolm wrote:

> This is the most trivial example of a real fix-it example I could think
> of: if the user writes
> 	ptr.field
> rather than ptr->field.
> 
> gcc/c/ChangeLog:
> 	* c-typeck.c (build_component_ref): Special-case POINTER_TYPE when
> 	generating a "not a structure of union"  error message, and
> 	suggest a "->" rather than a ".", providing a fix-it hint.

I wonder if this should be restricted to the case where the pointer's 
target is of structure or union type.  At least, if it's some other type, 
more of a fix is needed than just using -> (e.g. converting from void * to 
a pointer to the relevant type).

-- 
Joseph S. Myers
joseph@codesourcery.com