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From: bart <bc@freeuk.com>
Newsgroups: comp.lang.c
Subject: Struct Error
Date: Wed, 22 Jan 2025 16:14:08 +0000
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Gcc 14.1 gives me an error compiling this code:

   struct vector;
   struct scenet;

   struct vector {
       double x;
       double y;
       double z;
   };

   struct scenet {
       struct vector center;
       double radius;
       struct scenet (*child)[];
   };

The error is:

   error: array type has incomplete element type 'struct scenet'
    struct scenet (*child)[];
                   ^~~~~

Is there any way to fix this, or is it not possible?

(This comes from generated code. Idiomatic C would use a T* here rather 
than T(*)[], but that is not an option. Other compilers like tcc, DMC 
and mine have no problem with it.)