Re: [v3][PATCH 2/2] Update documentation to clarify a GCC extension (PR77650)

[Qing Zhao via Gcc-patches]

> On Feb 23, 2023, at 7:56 PM, Joseph Myers <jos...@codesourcery.com> wrote:
> 
> On Thu, 23 Feb 2023, Qing Zhao via Gcc-patches wrote:
> 
>> But the following:
>> 
>> struct flex1  { int length1; char data1[]; };
>> struct flex2  { int length2; char data2[]; };
>> union union_flex { struct flex1 f1; struct flex2 f2; };  /* this is C 
>> standard.  */
>> 
>> struct out_flex { int n; union union_flex flex_data1;};  /* this is GNU 
>> extension.  */
>> 
>> Should add this item into the documentation?
> 
> "union that contains a structure with a flexible array member" is just 
> like "structure with a flexible array member".  I suppose the 
> documentation should try to make that clear, without repeating it too much 
> for every separate case.

Okay, thanks.

Qing
> 
> -- 
> Joseph S. Myers
> jos...@codesourcery.com