re PR c++/59629 ([c++11] ICE with invalid use of auto in lambda function)

Fix PR c++/59629

	PR c++/59629
	* cp/parser.c (cp_parser_lambda_expression): Save/reset/restore
	auto_is_implicit_function_template_parm_p around lambda body.

	* g++.dg/cpp1y/pr59629.C: New testcase.

From-SVN: r206370

gcc/cp/ChangeLog

@@ -8,6 +8,10 @@
 	* cp/parser.c (cp_parser_template_parameter): Early out with
 	error_mark_node if parameter declaration was not parsed.
 
+	PR c++/59629
+	* cp/parser.c (cp_parser_lambda_expression): Save/reset/restore
+	auto_is_implicit_function_template_parm_p around lambda body.
+
 2014-01-03  Marc Glisse  <marc.glisse@inria.fr>
 
 	PR c++/58950

gcc/cp/parser.c

@@ -8738,6 +8738,8 @@ cp_parser_lambda_expression (cp_parser* parser)
         = parser->fully_implicit_function_template_p;
     tree implicit_template_parms = parser->implicit_template_parms;
     cp_binding_level* implicit_template_scope = parser->implicit_template_scope;
+    bool auto_is_implicit_function_template_parm_p
+        = parser->auto_is_implicit_function_template_parm_p;
 
     parser->num_template_parameter_lists = 0;
     parser->in_statement = 0;
@@ -8745,6 +8747,7 @@ cp_parser_lambda_expression (cp_parser* parser)
     parser->fully_implicit_function_template_p = false;
     parser->implicit_template_parms = 0;
     parser->implicit_template_scope = 0;
+    parser->auto_is_implicit_function_template_parm_p = false;
 
     /* By virtue of defining a local class, a lambda expression has access to
        the private variables of enclosing classes.  */
@@ -8772,6 +8775,8 @@ cp_parser_lambda_expression (cp_parser* parser)
 	= fully_implicit_function_template_p;
     parser->implicit_template_parms = implicit_template_parms;
     parser->implicit_template_scope = implicit_template_scope;
+    parser->auto_is_implicit_function_template_parm_p
+	= auto_is_implicit_function_template_parm_p;
   }
 
   pop_deferring_access_checks ();

gcc/testsuite/ChangeLog

@@ -2,8 +2,10 @@
 
 	PR c++/59635
 	PR c++/59636
+	PR c++/59629
 	* g++.dg/cpp1y/pr59635.C: New testcase.
 	* g++.dg/cpp1y/pr59636.C: New testcase.
+	* g++.dg/cpp1y/pr59629.C: New testcase.
 
 2014-01-06  Martin Jambor  <mjambor@suse.cz>
 

gcc/testsuite/g++.dg/cpp1y/pr59629.C

+// { dg-do compile }
+// { dg-options "-std=c++1y" }
+
+// PR c++/59629
+
+void foo(int i = []{ auto 0; }()); // { dg-error "expected|could not convert" }
+