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ref: 1344701bd8e23e73e5f94096485553b534ba4890
parent: 3e74db0e8da377cee03ec3c7825ddad168045055
author: Roberto E. Vargas Caballero <k0ga@shike2.com>
date: Fri Aug 25 11:09:53 EDT 2017

[cc1] Forbid array of voids

It is impossible to have an array of voids, because it is impossible
to declare a variable of type void.

--- a/cc1/types.c

+++ b/cc1/types.c

@@ -298,6 +298,10 @@

 	switch (op) {

 	case ARY:

+		if (tp == voidtype) {

+			errorp("declaration of symbol as array of voids");

+			tp = inttype;

+		}

 		type.letter = L_ARRAY;

 		if (nelem != 0)

 			type.prop |= TDEFINED;