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re PR c++/46688 (g++ requires a function declaration when it should not)

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PR c++/46688
	* tree.c (build_vec_init_expr): Handle flexible array
	properly.

From-SVN: r168782
This commit is contained in:
Jason Merrill 2011-01-14 08:08:02 -05:00 committed by Jason Merrill
parent 8f66db3b32
commit 70f961a51e
4 changed files with 27 additions and 1 deletions
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6
gcc/cp/ChangeLog
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@ -1,3 +1,9 @@
2011-01-14 Jason Merrill <jason@redhat.com>
PR c++/46688
* tree.c (build_vec_init_expr): Handle flexible array
properly.
2011-01-13 Kai Tietz <kai.tietz@onevision.com>
PR c++/47213

7
gcc/cp/tree.c
View File

@ -474,7 +474,12 @@ build_vec_init_expr (tree type, tree init)
what functions are needed. Here we assume that init is either
NULL_TREE, void_type_node (indicating value-initialization), or
another array to copy. */
if (init == void_type_node)
if (integer_zerop (array_type_nelts_total (type)))
{
/* No actual initialization to do. */;
init = NULL_TREE;
}
else if (init == void_type_node)
{
elt_init = build_value_init (inner_type, tf_warning_or_error);
value_init = true;

4
gcc/testsuite/ChangeLog
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@ -1,3 +1,7 @@
2011-01-14 Jason Merrill <jason@redhat.com>
* g++.dg/ext/flexary2.C: New.
2011-01-14 Richard Guenther <rguenther@suse.de>
PR middle-end/47281

11
gcc/testsuite/g++.dg/ext/flexary2.C Normal file
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@ -0,0 +1,11 @@
// PR c++/46688
// { dg-options "" }
struct A {
A(int);
};
struct B {
B() {}
A a[];
};