On Sat, Dec 02, 2023 at 09:50:33AM +0100, Bruno Haible wrote: > I still don't know whether it's OK to have pointers to arrays with > 0 elements (which are not "array objects", since "objects" are non- > empty (§ 6.2.6.1.(2))).
From § 6.7.6.2 about array declarators: If the expression is a constant expression, it shall have a value greater than zero. Hence, arrays must have at least one element. And in case of memory management functions, the behaviour is implementation-defined for a requested size of zero (see § 7.24.3) and null pointers are possible. Hence pointer arithmetic is not supported for pointers returned by malloc(0). Andreas -- Dr. Andreas F. Borchert, Institut für Numerische Mathematik, Universität Ulm Helmholtzstr. 20, 89081 Ulm, +49 7315023572 https://mathematik.uni-ulm.de/afb
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