Hi, On 2021-07-30 15:35:30 -0400, Melanie Plageman wrote: > * I think that having TBMIterateResult inside of TBMIterator is not > well-defined C language behavior. In [1], it says > > "Structures with flexible array members (or unions who have a > recursive-possibly structure member with flexible array member) cannot > appear as array elements or as members of other structures."
> [1] https://en.cppreference.com/w/c/language/struct I think it is ok as long as the struct with the flexible array member is at the end of the struct it is embedded in. I think even by the letter of the standard, but it's as always hard to parse... Greetings, Andres Freund