re PR c++/6944 (missing feature on default copy-constructor for class with multi-dim arrays)

PR c++/6944
	* init.c (build_aggr_init): Remove qualifiers of init before calling
	build_vec_init.
	(build_vec_init): Flatten multi-dimensional array during cleanup.
	(build_vec_delete_1): Abort if the type of each element is array.

	* g++.dg/init/array4.C: New test.
	* g++.dg/init/array5.C: New test.

From-SVN: r55214

gcc/cp/ChangeLog

@@ -1,3 +1,11 @@
+2002-07-03  Kriang Lerdsuwanakij  <lerdsuwa@users.sourceforge.net>
+
+	PR c++/6944
+	* init.c (build_aggr_init): Remove qualifiers of init before calling
+	build_vec_init.
+	(build_vec_init): Flatten multi-dimensional array during cleanup.
+	(build_vec_delete_1): Abort if the type of each element is array.
+
 2002-07-03  Graham Stott  <graham.stott@btinternet.com>
 
 	* pt.c (instantiate_class_template): Fix typo.

gcc/cp/init.c

@@ -1161,11 +1161,9 @@ build_aggr_init (exp, init, flags)
 	  return error_mark_node;
 	}
       if (cp_type_quals (type) != TYPE_UNQUALIFIED)
-	{
-	  TREE_TYPE (exp) = TYPE_MAIN_VARIANT (type);
-	  if (init)
-	    TREE_TYPE (init) = TYPE_MAIN_VARIANT (itype);
-	}
+	TREE_TYPE (exp) = TYPE_MAIN_VARIANT (type);
+      if (itype && cp_type_quals (itype) != TYPE_UNQUALIFIED)
+	TREE_TYPE (init) = TYPE_MAIN_VARIANT (itype);
       stmt_expr = build_vec_init (exp, init,
 				  init && same_type_p (TREE_TYPE (init),
 						       TREE_TYPE (exp)));
@@ -2586,6 +2584,10 @@ build_vec_delete_1 (base, maxindex, type, auto_delete_vec, use_global_delete)
      This is also the containing expression returned by this function.  */
   tree controller = NULL_TREE;
 
+  /* We should only have 1-D arrays here.  */
+  if (TREE_CODE (type) == ARRAY_TYPE)
+    abort ();
+
   if (! IS_AGGR_TYPE (type) || TYPE_HAS_TRIVIAL_DESTRUCTOR (type))
     {
       loop = integer_zero_node;
@@ -3002,12 +3004,20 @@ build_vec_init (base, init, from_array)
       && from_array != 2)
     {
       tree e;
+      tree m = cp_build_binary_op (MINUS_EXPR, maxindex, iterator);
+
+      /* Flatten multi-dimensional array since build_vec_delete only
+	 expects one-dimensional array.  */
+      if (TREE_CODE (type) == ARRAY_TYPE)
+	{
+	  m = cp_build_binary_op (MULT_EXPR, m,
+				  array_type_nelts_total (type));
+	  type = strip_array_types (type);
+	}
 
       finish_compound_stmt (/*has_no_scope=*/1, try_body);
       finish_cleanup_try_block (try_block);
-      e = build_vec_delete_1 (rval,
-			      cp_build_binary_op (MINUS_EXPR, maxindex, 
-						  iterator),
+      e = build_vec_delete_1 (rval, m,
 			      type,
 			      sfk_base_destructor,
 			      /*use_global_delete=*/0);

gcc/testsuite/ChangeLog

@@ -1,3 +1,9 @@
+2002-07-03  Kriang Lerdsuwanakij  <lerdsuwa@users.sourceforge.net>
+
+	PR c++/6944
+	* g++.dg/init/array4.C: New test.
+	* g++.dg/init/array5.C: New test.
+
 Wed Jul  3 10:25:41 2002  J"orn Rennecke <joern.rennecke@superh.com>
 
 	* gcc.c-torture/execute/simd-1.c (main): Also test &, |, ^, ~.

gcc/testsuite/g++.dg/init/array4.C

@@ -0,0 +1,27 @@
+// { dg-do compile }
+// Origin: Markus Breuer <markus.breuer@materna.de>
+
+// PR c++/6944
+// Fail to synthesize copy constructor of multi-dimensional
+// array of class.
+
+#include <string>
+
+class Array
+{
+public:
+   std::string m_array[10][20][30];
+};
+
+Array func()
+{
+   Array result;
+   return result; // sorry, not implemented: cannot initialize multi-dimensional array with initializer
+}
+
+
+int main()
+{
+   Array arr = func();
+}
+

gcc/testsuite/g++.dg/init/array5.C

@@ -0,0 +1,52 @@
+// { dg-do run }
+// Copyright (C) 2002 Free Software Foundation
+// Contributed by Kriang Lerdsuwanakij <lerdsuwa@users.sourceforge.net>
+
+// Incorrect construction and destruction of multi-dimensional
+// array of class.
+
+extern "C" void abort();
+extern "C" int printf(const char *, ...);
+
+int count;
+int num;
+
+struct A
+{
+	A()
+	{
+		if (count == num)
+			throw "";
+		count++;
+#ifdef PRINT
+		printf("ctor %p\n", static_cast<void *>(this));
+#endif
+	}
+
+	~A()
+	{
+		count--;
+#ifdef PRINT
+		printf("dtor %p\n", static_cast<void *>(this));
+#endif
+	}
+};
+
+struct Array
+{
+	A array[2][2][2];
+};
+
+int main()
+{
+	for (num = 0; num <= 8; ++num) {
+		count = 0;
+		try {
+			Array A;
+		}
+		catch (...) {
+		}
+		if (count != 0)
+			abort();
+	}
+}