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re PR c++/42056 (ICE with invalid use of auto in template)

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/cp
2011-05-27  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/42056
	* typeck2.c (build_functional_cast): Complain early for invalid uses
	of 'auto' and set type to error_mark_node.

/testsuite
2011-05-27  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/42056
	* testsuite/g++.dg/cpp0x/auto25.C: New.

From-SVN: r174337
This commit is contained in:
Paolo Carlini 2011-05-27 14:21:33 +00:00 committed by Paolo Carlini
parent b0bd15f7aa
commit efaa76b31d
4 changed files with 30 additions and 0 deletions
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6
gcc/cp/ChangeLog
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@ -1,3 +1,9 @@
2011-05-27 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/42056
* typeck2.c (build_functional_cast): Complain early for invalid uses
of 'auto' and set type to error_mark_node.
2011-05-26 Jason Merrill <jason@redhat.com> 2011-05-26 Jason Merrill <jason@redhat.com>
PR c++/47721 PR c++/47721

7
gcc/cp/typeck2.c
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@ -1599,6 +1599,13 @@ build_functional_cast (tree exp, tree parms, tsubst_flags_t complain)
return error_mark_node; return error_mark_node;
} }
if (type_uses_auto (type))
{
if (complain & tf_error)
error ("invalid use of %<auto%>");
type = error_mark_node;
}
if (processing_template_decl) if (processing_template_decl)
{ {
tree t; tree t;

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2011-05-27 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/42056
* testsuite/g++.dg/cpp0x/auto25.C: New.
2011-05-27 Richard Guenther <rguenther@suse.de> 2011-05-27 Richard Guenther <rguenther@suse.de>
* gcc.c-torture/execute/920711-1.x: Add -fwrapv. * gcc.c-torture/execute/920711-1.x: Add -fwrapv.

12
gcc/testsuite/g++.dg/cpp0x/auto25.C Normal file
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@ -0,0 +1,12 @@
// PR c++/42056
// { dg-options -std=c++0x }
template<int> struct A
{
int a[auto(1)]; // { dg-error "invalid use of" }
};
template<int> void foo()
{
int a[auto(1)]; // { dg-error "invalid use of" }
}