https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107952
--- Comment #20 from rguenther at suse dot de <rguenther at suse dot de> --- On Thu, 26 Jan 2023, qinzhao at gcc dot gnu.org wrote: > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107952 > > --- Comment #19 from qinzhao at gcc dot gnu.org --- > (In reply to rguent...@suse.de from comment #11) > > > > Agreed, usually where these extension should be documented? > > > > They are usually documented in doc/extend.texi > > there is one section on "Zero Length" (Arrays of Length Zero), which mentioned > this a little bit: > > "A structure containing a flexible array member, or a union containing > such a structure (possibly recursively), may not be a member of a > structure or an element of an array. (However, these uses are > permitted by GCC as extensions.)" > > We might add one more sub-section inside this section to clarify how GCC > handles the situation when a structure containing a flexible array member > becomes a member of another structure. > > is that a good place to put the documentation? Yes, I think so.
