> On Jun 7, 2023, at 4:53 PM, Joseph Myers <jos...@codesourcery.com> wrote:
>
> On Wed, 7 Jun 2023, Qing Zhao via Gcc-patches wrote:
>
>> Hi, Joseph,
>>
>> A question here: can an identifier in C be a wide char string?
>
> Identifiers and strings are different kinds of tokens; an identifier can't
> be a string of any kind, wide or narrow. It just so happens that the
> proposed interface here involves interpreting the contents of a string as
> referring to an identifier (presumably for parsing convenience compared to
> using an identifier directly in an attribute).
Are you suggesting to use identifier directly as the argument of the attribute?
I tried this in the beginning, however, the current parser for the attribute
argument can not identify that this identifier is a field identifier inside the
same structure.
For example:
int count;
struct trailing_array_7 {
Int count;
int array_7[] __attribute ((element_count (count)));
};
The identifier “count” inside the attribute will refer to the variable “int
count” outside of the structure.
We need to introduce new syntax for this and also need to update the parser of
the attribute.
Not sure at this moment whether the extra effort is necessary or not?
Any suggestions?
thanks.
Qing
>
> --
> Joseph S. Myers
> jos...@codesourcery.com
