decl.c (redeclaration_error_message): Complain when redeclaring a friend function with default template arguments...

2007-03-28  Douglas Gregor  <doug.gregor@gmail.com>

	* decl.c (redeclaration_error_message): Complain when redeclaring
	a friend function with default template arguments (C++0x mode only).
	* cp-tree.h (check_default_tmpl_args): Declare.
	* pt.c (check_default_tmpl_args): In C++0x mode, permit default
	template arguments in function templates. Add support for checking
	the default template arguments of friend templates.
	(push_template_decl_real): Fix call to check_default_tmpl_args.
	(type_unification_real): If a template parameter has not been
	deduced but provides a default template argument, substitute into
	that default template argument.
	* parser.c (cp_parser_init_declarator): When declaring (but not
	defining!) a function template in C++0x mode, check for default
	template arguments.

2007-03-28  Douglas Gregor  <doug.gregor@gmail.com>

	* g++.dg/cpp0x/temp_default1.C: New.
	* g++.dg/cpp0x/temp_default3.C: New.
	* g++.dg/cpp0x/temp_default2.C: New.
	* g++.dg/cpp0x/temp_default4.C: New.

From-SVN: r123300