re PR c++/71979 (ICE with on C++ code with incorrect type in overloaded base class '=' operator: in build_base_path, at cp/class.c:304)

/cp
2016-09-22  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/71979
	* class.c (build_base_path): Allow for lookup_base returning
	NULL_TREE.

/testsuite
2016-09-22  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/71979
	* g++.dg/cpp0x/pr71979.C: New.

From-SVN: r240373
This commit is contained in:
Paolo Carlini 2016-09-22 15:26:23 +00:00 committed by Paolo Carlini
parent ed64a4e75f
commit a608d15bed
4 changed files with 29 additions and 2 deletions

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@ -1,3 +1,9 @@
2016-09-22 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/71979
* class.c (build_base_path): Allow for lookup_base returning
NULL_TREE.
2016-09-21 Jason Merrill <jason@redhat.com>
Core 903

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@ -296,12 +296,13 @@ build_base_path (enum tree_code code,
/* This can happen when adjust_result_of_qualified_name_lookup can't
find a unique base binfo in a call to a member function. We
couldn't give the diagnostic then since we might have been calling
a static member function, so we do it now. */
a static member function, so we do it now. In other cases, eg.
during error recovery (c++/71979), we may not have a base at all. */
if (complain & tf_error)
{
tree base = lookup_base (probe, BINFO_TYPE (d_binfo),
ba_unique, NULL, complain);
gcc_assert (base == error_mark_node);
gcc_assert (base == error_mark_node || !base);
}
return error_mark_node;
}

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@ -1,3 +1,8 @@
2016-09-22 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/71979
* g++.dg/cpp0x/pr71979.C: New.
2016-09-22 Bernd Edlinger <bernd.edlinger@hotmail.de>
* g++.dg/pr77550.C: Use __SIZE_TYPE__.

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@ -0,0 +1,15 @@
// PR c++/71979
// { dg-do compile { target c++11 } }
struct A
{
A & operator= (A &);
};
struct B : A {}; // { dg-error "cannot bind" }
void foo ()
{
B b;
b = B (); // { dg-error "use of deleted" }
}