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re PR c++/51786 ([c++0x] Invalid declaration with decltype accepted)

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/cp
2013-07-09  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/51786
	* parser.c (cp_parser_simple_declaration): Before calling shadow_tag
	also check declares_class_or_enum.

/testsuite
2013-07-09  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/51786
	* g++.dg/cpp0x/pr51786.C: New.

From-SVN: r200813
This commit is contained in:
Paolo Carlini 2013-07-09 09:28:09 +00:00 committed by Paolo Carlini
parent 3830d98a8b
commit 22adf7b528
4 changed files with 30 additions and 2 deletions
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6
gcc/cp/ChangeLog
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@ -1,3 +1,9 @@
2013-07-09 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/51786
* parser.c (cp_parser_simple_declaration): Before calling shadow_tag
also check declares_class_or_enum.
2013-07-08 Jason Merrill <jason@redhat.com>
PR c++/57550

13
gcc/cp/parser.c
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@ -11009,11 +11009,20 @@ cp_parser_simple_declaration (cp_parser* parser,
/* Issue an error message if no declarators are present, and the
decl-specifier-seq does not itself declare a class or
enumeration. */
enumeration: [dcl.dcl]/3. */
if (!saw_declarator)
{
if (cp_parser_declares_only_class_p (parser))
shadow_tag (&decl_specifiers);
{
if (!declares_class_or_enum
&& decl_specifiers.type
&& OVERLOAD_TYPE_P (decl_specifiers.type))
/* Ensure an error is issued anyway when finish_decltype_type,
called via cp_parser_decl_specifier_seq, returns a class or
an enumeration (c++/51786). */
decl_specifiers.type = NULL_TREE;
shadow_tag (&decl_specifiers);
}
/* Perform any deferred access checks. */
perform_deferred_access_checks (tf_warning_or_error);
}

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2013-07-09 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/51786
* g++.dg/cpp0x/pr51786.C: New.
2013-07-08 Janis Johnson <janisjo@codesourcery.com>
* gcc.target/powerpc/tfmode_off.c: Skip for EABI targets.

8
gcc/testsuite/g++.dg/cpp0x/pr51786.C Normal file
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@ -0,0 +1,8 @@
// PR c++/51786
// { dg-do compile { target c++11 } }
enum E {};
struct A {};
void foo() { decltype(E{}); } // { dg-error "does not declare anything" }
void bar() { decltype(A{}); } // { dg-error "does not declare anything" }