C++ grammar

grammar

= translation_unit
	declarations

* declarations
	declaration

| primary_expression
	primary_expression_literal
	primary_expression_this
	expression_in_parentheses
	id_expression
	lambda_expression

= primary_expression_literal
	LITERAL

= primary_expression_this
	KEYWORD this_

= expression_in_parentheses
	OPERATOR left_parentheses
	expression
	OPERATOR right_parentheses

| type_name
	class_name
	enum_name
	typedef_name

| class_name
	class_name_identifier
	class_name_template

= class_name_template
	IDENTIFIER TC
	template_name_suffix

= template_name_suffix
	OPERATOR less
	? template_argument_list
	close_angle_bracket

= class_name_identifier
	IDENTIFIER C

= enum_name
	IDENTIFIER E

= namespace_name
	IDENTIFIER N

= typedef_name
	IDENTIFIER Y

= simple_template_id
	IDENTIFIER T
	OPERATOR less
	? template_argument_list
	close_angle_bracket

| id_expression
	qualified_id
	unqualified_id

| unqualified_id
	unqualified_id_identifier
	operator_function_id
	conversion_function_id
	literal_operator_id
	unqualified_id_compl_class
	unqualified_id_compl_decltype
	template_id

= unqualified_id_identifier
	IDENTIFIER

= unqualified_id_compl_class
	OPERATOR complement
	class_name

= unqualified_id_compl_decltype
	OPERATOR complement
	decltype_specifier

= qualified_id
	nested_name_specifier
	? KEYWORD template_
	unqualified_id

= nested_name_specifier
	nested_name_specifier_root
	nested_name_specifier_suffixes

* nested_name_specifier_suffixes
	nested_name_specifier_suffix

| nested_name_specifier_root
	nested_name_specifier_root_empty
	nested_name_specifier_root_type
	nested_name_specifier_root_namespace
	nested_name_specifier_root_decltype

= nested_name_specifier_root_empty
	OPERATOR colons

= nested_name_specifier_root_type
	type_name
	OPERATOR colons

= nested_name_specifier_root_namespace
	namespace_name
	OPERATOR colons

= nested_name_specifier_root_decltype
	decltype_specifier
	OPERATOR colons

| nested_name_specifier_suffix
	nested_name_specifier_suffix_identifier
	nested_name_specifier_suffix_template

= nested_name_specifier_suffix_identifier
	IDENTIFIER
	OPERATOR colons

= nested_name_specifier_suffix_template
	? KEYWORD template_
	simple_template_id
	OPERATOR colons

= lambda_expression
	lambda_introducer
	? lambda_declarator
	compound_statement

= lambda_introducer
	OPERATOR left_square_bracket
	? lambda_capture
	OPERATOR right_square_bracket

| lambda_capture
	capture_default
	capture_list
	capture_default_comma_list

= capture_default_comma_list
	capture_default
	OPERATOR comma
	capture_list

| capture_default
	capture_default_reference
	capture_default_copy

= capture_default_reference
	OPERATOR bit_and

= capture_default_copy
	OPERATOR assignment

= capture_list
	capture
	? OPERATOR dots
	comma_captures

* comma_captures
	comma_capture

= comma_capture
	OPERATOR comma
	capture
	? OPERATOR dots

| capture
	capture_copy
	capture_reference
	capture_this

= capture_copy
	IDENTIFIER

= capture_reference
	OPERATOR bit_and
	IDENTIFIER

= capture_this
	KEYWORD this_

= lambda_declarator
	OPERATOR left_parentheses
	parameter_declaration_clause
	OPERATOR right_parentheses
	? KEYWORD mutable_
	? exception_specification
	attribute_specifiers
	? trailing_return_type

= postfix_expression
	postfix_root
	postfix_suffixes

* postfix_suffixes
	postfix_suffix

| postfix_root
	postfix_root_primary_expression
	postfix_root_simple_type_specifier
	postfix_root_typename_specifier
	postfix_root_simple_type_braced_init
	postfix_root_typename_braced_init
	named_cast
	postfix_root_typeid_expression
	postfix_root_typeid_type

= postfix_root_primary_expression
	primary_expression

= postfix_root_simple_type_specifier
	simple_type_specifier
	OPERATOR left_parentheses
	? expression_list
	OPERATOR right_parentheses

= postfix_root_typename_specifier
	typename_specifier
	OPERATOR left_parentheses
	? expression_list
	OPERATOR right_parentheses

= postfix_root_simple_type_braced_init
	simple_type_specifier
	braced_init_list

= postfix_root_typename_braced_init
	typename_specifier
	braced_init_list

| named_cast
	named_dynamic_cast
	named_static_cast
	named_reinterpret_cast
	named_const_cast

= named_dynamic_cast
	KEYWORD dynamic_cast_
	named_cast_suffix

= named_static_cast
	KEYWORD static_cast_
	named_cast_suffix

= named_reinterpret_cast
	KEYWORD reinterpret_cast_
	named_cast_suffix

= named_const_cast
	KEYWORD const_cast_
	named_cast_suffix

= named_cast_suffix
	OPERATOR less
	type_id
	close_angle_bracket
	OPERATOR left_parentheses
	expression
	OPERATOR right_parentheses

= postfix_root_typeid_expression
	KEYWORD typeid_
	OPERATOR left_parentheses
	expression
	OPERATOR right_parentheses

= postfix_root_typeid_type
	KEYWORD typeid_
	OPERATOR left_parentheses
	type_id
	OPERATOR right_parentheses

| postfix_suffix
	postfix_suffix_subscript_expression
	postfix_suffix_subscript_braces
	postfix_suffix_parentheses
	postfix_suffix_dot_destructor
	postfix_suffix_dot_id
	postfix_suffix_arrow_destructor
	postfix_suffix_arrow_id
	postfix_suffix_inc
	postfix_suffix_dec

= postfix_suffix_subscript_expression
	OPERATOR left_square_bracket
	expression
	OPERATOR right_square_bracket

= postfix_suffix_subscript_braces
	OPERATOR left_square_bracket
	braced_init_list
	OPERATOR right_square_bracket

= postfix_suffix_parentheses
	OPERATOR left_parentheses
	? expression_list
	OPERATOR right_parentheses

= postfix_suffix_dot_destructor
	OPERATOR dot
	pseudo_destructor_name

= postfix_suffix_dot_id
	OPERATOR dot
	? KEYWORD template_
	id_expression

= postfix_suffix_arrow_destructor
	OPERATOR arrow
	pseudo_destructor_name

= postfix_suffix_arrow_id
	OPERATOR arrow
	? KEYWORD template_
	id_expression

= postfix_suffix_inc
	OPERATOR increment

= postfix_suffix_dec
	OPERATOR decrement

= expression_list
	initializer_list

| pseudo_destructor_name
	pseudo_destructor_name_type
	pseudo_destructor_name_decltype

= pseudo_destructor_name_type
	? nested_name_specifier
	OPERATOR complement
	type_name

= pseudo_destructor_name_decltype
	OPERATOR complement
	decltype_specifier

| unary_expression
	postfix_expression
	unary_cast_expression
	unary_sizeof_expression
	unary_sizeof_expression_parentheses
	unary_sizeof_dots
	unary_alignof
	noexcept_expression
	new_expression
	delete_expression

= unary_cast_expression
	unary_operator
	cast_expression

= unary_sizeof_expression
	KEYWORD sizeof_
	unary_expression

= unary_sizeof_expression_parentheses
	KEYWORD sizeof_
	OPERATOR left_parentheses
	type_id
	OPERATOR right_parentheses

= unary_sizeof_dots
	KEYWORD sizeof_
	OPERATOR dots
	OPERATOR left_parentheses
	IDENTIFIER
	OPERATOR right_parentheses

= unary_alignof
	KEYWORD alignof_
	OPERATOR left_parentheses
	type_id
	OPERATOR right_parentheses

= unary_operator
	OPERATOR operator_ increment decrement multiply bit_and plus minus logical_not complement

| new_expression
	new_expression_type
	new_expression_normal

= new_expression_normal
	? OPERATOR colons
	OPERATOR new_
	? new_placement
	new_type_id
	? new_initializer

= new_expression_type
	? OPERATOR colons
	OPERATOR new_
	? new_placement
	OPERATOR left_parentheses
	type_id
	OPERATOR right_parentheses
	? new_initializer

= new_placement
	OPERATOR left_parentheses
	expression_list
	OPERATOR right_parentheses

= new_type_id
	type_specifier_seq
	? new_declarator

| new_declarator
	new_declarator_noptr
	new_declarator_ptr

= new_declarator_noptr
	ptr_operators
	noptr_new_declarator

= new_declarator_ptr
	ptr_operator
	ptr_operators

= noptr_new_declarator
	OPERATOR left_square_bracket
	expression
	OPERATOR right_square_bracket
	attribute_specifiers
	noptr_new_declarator_suffixes

* noptr_new_declarator_suffixes
	noptr_new_declarator_suffix

= noptr_new_declarator_suffix
	OPERATOR left_square_bracket
	constant_expression
	OPERATOR right_square_bracket
	attribute_specifiers

| new_initializer
	new_initializer_parentheses
	new_initializer_init_list

= new_initializer_parentheses
	OPERATOR left_parentheses
	? expression_list
	OPERATOR right_parentheses

= new_initializer_init_list
	braced_init_list

| delete_expression
	delete_expression_no_array
	delete_expression_array

= delete_expression_no_array
	? OPERATOR colons
	OPERATOR delete_
	cast_expression

= delete_expression_array
	? OPERATOR colons
	OPERATOR delete_
	OPERATOR left_square_bracket
	OPERATOR right_square_bracket
	cast_expression

= noexcept_expression
	KEYWORD noexcept_
	OPERATOR left_parentheses
	expression
	OPERATOR right_parentheses

| cast_expression
	real_cast_expression
	unary_expression

= real_cast_expression
	cast_operator
	cast_expression

= cast_operator
	OPERATOR left_parentheses
	type_id
	OPERATOR right_parentheses

= pm_expression
	cast_expression
	? pm_expression_suffix

= pm_expression_suffix
	OPERATOR operator_ dot_star arrow_star
	pm_expression

= multiplicative_expression
	pm_expression
	? multiplicative_expression_suffix

= multiplicative_expression_suffix
	OPERATOR operator_ multiply divide modulo
	multiplicative_expression

= additive_expression
	multiplicative_expression
	? additive_expression_suffix

= additive_expression_suffix
	OPERATOR operator_ plus minus
	additive_expression

= shift_expression
	additive_expression
	? shift_expression_suffix

= shift_expression_suffix
	shift_operator
	shift_expression

| shift_operator
	left_shift_operator
	right_shift_operator

= left_shift_operator
	OPERATOR left_shift

= right_shift_operator
	OPERATOR right_shift_1
	OPERATOR right_shift_2

= relational_expression
	shift_expression
	? relational_expression_suffix

= relational_expression_suffix
	OPERATOR operator_ less greater less_equal greater_equal
	relational_expression

= equality_expression
	relational_expression
	? equality_expression_suffix

= equality_expression_suffix
	OPERATOR operator_ equal not_equal
	equality_expression

= and_expression
	equality_expression
	? and_expression_suffix

= and_expression_suffix
	OPERATOR bit_and
	and_expression

= exclusive_or_expression
	and_expression
	? exclusive_or_expression_suffix

= exclusive_or_expression_suffix
	OPERATOR bit_xor
	exclusive_or_expression

= inclusive_or_expression
	exclusive_or_expression
	? inclusive_or_expression_suffix

= inclusive_or_expression_suffix
	OPERATOR bit_or
	inclusive_or_expression

= logical_and_expression
	inclusive_or_expression
	? logical_and_expression_suffix

= logical_and_expression_suffix
	OPERATOR logical_and
	logical_and_expression

= logical_or_expression
	logical_and_expression
	? logical_or_expression_suffix

= logical_or_expression_suffix
	OPERATOR logical_or
	logical_or_expression

= conditional_expression
	logical_or_expression
	? conditional_expression_suffix

= conditional_expression_suffix
	OPERATOR question
	expression
	OPERATOR colon
	assignment_expression

| assignment_expression
	real_assignment_expression
	conditional_expression
	throw_expression

= real_assignment_expression
	logical_or_expression
	OPERATOR operator_ assignment multiply_assignment divide_assignment modulo_assignment plus_assignment minus_assignment right_shift_assignment left_shift_assignment and_assignment xor_assignment or_assignment
	initializer_clause

| comma_expression
	real_comma_expression
	assignment_expression

= real_comma_expression
	assignment_expression
	OPERATOR comma
	comma_expression

| expression
	comma_expression

= constant_expression
	conditional_expression

| statement
	attribute_statement
	declaration_statement

= attribute_statement
	attribute_specifiers
	attribute_statement_suffix

| attribute_statement_suffix
	labeled_statement
	expression_statement
	compound_statement
	selection_statement
	iteration_statement
	jump_statement
	try_block

| labeled_statement
	label_statement
	case_statement
	default_statement

= label_statement
	IDENTIFIER
	OPERATOR colon
	statement

= case_statement
	KEYWORD case_
	constant_expression
	OPERATOR colon
	statement

= default_statement
	KEYWORD default_
	OPERATOR colon
	statement

= expression_statement
	? expression
	OPERATOR semicolon

= compound_statement
	OPERATOR left_brace
	statements
	OPERATOR right_brace

* statements
	statement

| selection_statement
	if_statement
	switch_statement

= if_statement
	KEYWORD if_
	OPERATOR left_parentheses
	condition
	OPERATOR right_parentheses
	statement
	? else_statement

= else_statement
	KEYWORD else_
	statement

= switch_statement
	KEYWORD switch_
	OPERATOR left_parentheses
	condition
	OPERATOR right_parentheses
	statement

= condition_declaration
	attribute_specifiers
	decl_specifier_seq
	declarator
	condition_declaration_suffix

| condition_declaration_suffix
	condition_declaration_suffix_assignment
	condition_declaration_suffix_init_list

= condition_declaration_suffix_assignment
	OPERATOR assignment
	initializer_clause

= condition_declaration_suffix_init_list
	braced_init_list

| condition
	condition_declaration
	expression

| iteration_statement
	while_statement
	do_statement
	for_statement
	range_for_statement

= while_statement
	KEYWORD while_
	OPERATOR left_parentheses
	condition
	OPERATOR right_parentheses
	statement

= do_statement
	KEYWORD do_
	statement
	KEYWORD while_
	OPERATOR left_parentheses
	expression
	OPERATOR right_parentheses
	OPERATOR semicolon

= for_statement
	KEYWORD for_
	OPERATOR left_parentheses
	for_init_statement
	? condition
	OPERATOR semicolon
	? expression
	OPERATOR right_parentheses
	statement

= range_for_statement
	KEYWORD for_
	OPERATOR left_parentheses
	for_range_declaration
	OPERATOR colon
	for_range_initializer
	OPERATOR right_parentheses
	statement

| for_init_statement
	for_init_statement_expression
	for_init_statement_declaration

= for_init_statement_expression
	expression_statement

= for_init_statement_declaration
	simple_declaration

= for_range_declaration
	attribute_specifiers
	decl_specifier_seq
	declarator

| for_range_initializer
	for_range_initializer_expression
	for_range_initializer_init_list

= for_range_initializer_expression
	expression

= for_range_initializer_init_list
	braced_init_list

| jump_statement
	break_statement
	continue_statement
	return_statement
	goto_statement

= break_statement
	KEYWORD break_
	OPERATOR semicolon

= continue_statement
	KEYWORD continue_
	OPERATOR semicolon

= return_statement
	KEYWORD return_
	? return_statement_value
	OPERATOR semicolon

| return_statement_value
	return_statement_expression
	return_statement_init_list

= return_statement_expression
	expression

= return_statement_init_list
	braced_init_list

= goto_statement
	KEYWORD goto_
	IDENTIFIER
	OPERATOR semicolon

= declaration_statement
	block_declaration

| declaration
	block_declaration
	function_definition
	template_declaration
	explicit_instantiation
	explicit_specialization
	linkage_specification
	namespace_definition
	empty_declaration
	attribute_declaration

| block_declaration
	simple_declaration
	asm_definition
	namespace_alias_definition
	using_declaration
	using_directive
	static_assert_declaration
	alias_declaration
	opaque_enum_declaration

= alias_declaration
	KEYWORD using_
	IDENTIFIER
	attribute_specifiers
	OPERATOR assignment
	type_id
	OPERATOR semicolon

* attribute_specifiers
	attribute_specifier

= simple_declaration
	attribute_specifiers
	decl_specifier_seq
	? init_declarator_list
	OPERATOR semicolon

= static_assert_declaration
	KEYWORD static_assert_
	OPERATOR left_parentheses
	constant_expression
	OPERATOR comma
	LITERAL
	OPERATOR right_parentheses
	OPERATOR semicolon

= empty_declaration
	OPERATOR semicolon

= attribute_declaration
	attribute_specifier
	attribute_specifiers
	OPERATOR semicolon

| decl_specifier
	storage_class_specifier
	type_specifier
	function_specifier
	decl_specifier_keyword

= decl_specifier_keyword
	KEYWORD keyword friend_ typedef_ constexpr_

= decl_specifier_seq
	decl_specifier
	decl_specifiers
	attribute_specifiers

* decl_specifiers
	decl_specifier

= storage_class_specifier
	KEYWORD keyword register_ static_ thread_local_ extern_ mutable_

= function_specifier
	KEYWORD keyword inline_ virtual_ explicit_

| type_specifier
	trailing_type_specifier
	class_specifier
	enum_specifier

| trailing_type_specifier
	simple_type_specifier
	elaborated_type_specifier
	typename_specifier
	cv_qualifier

= type_specifier_seq
	type_specifier
	type_specifiers
	attribute_specifiers

* type_specifiers
	type_specifier

= trailing_type_specifier_seq
	trailing_type_specifier
	trailing_type_specifiers
	attribute_specifiers

* trailing_type_specifiers
	trailing_type_specifier

| simple_type_specifier
	simple_type_specifier_keyword
	simple_type_specifier_type
	simple_type_specifier_template
	simple_type_decltype

= simple_type_decltype
	decltype_specifier

= simple_type_specifier_type
	? nested_name_specifier
	type_name

= simple_type_specifier_template
	nested_name_specifier
	KEYWORD template_
	simple_template_id

= simple_type_specifier_keyword
	KEYWORD keyword char_ char16_t_ char32_t_ wchar_t_ bool_ short_ int_ long_ signed_ unsigned_ float_ double_ void_ auto_

= decltype_specifier
	KEYWORD decltype_
	OPERATOR left_parentheses
	expression
	OPERATOR right_parentheses

| elaborated_type_specifier
	elaborated_type_specifier_identifier
	elaborated_type_specifier_template
	elaborated_type_specifier_enum

= elaborated_type_specifier_identifier
	class_key
	attribute_specifiers
	? nested_name_specifier
	IDENTIFIER

= elaborated_type_specifier_template
	class_key
	? nested_name_specifier
	? KEYWORD template_
	simple_template_id

= elaborated_type_specifier_enum
	KEYWORD enum_
	? nested_name_specifier
	IDENTIFIER

= enum_specifier
	enum_key
	attribute_specifiers
	? enum_specifier_name
	? enum_base
	OPERATOR left_brace
	? enumerator_list
	OPERATOR right_brace

= enum_specifier_name
	? nested_name_specifier
	IDENTIFIER

= enumerator_list
	enumerator_definition
	comma_enumerator_definitions
	? OPERATOR comma

* comma_enumerator_definitions
	comma_enumerator_definition

= comma_enumerator_definition
	OPERATOR comma
	enumerator_definition

= opaque_enum_declaration
	enum_key
	attribute_specifiers
	IDENTIFIER
	? enum_base
	OPERATOR semicolon

= enum_key
	KEYWORD enum_
	? KEYWORD class_or_struct class_ struct_

= enum_base
	OPERATOR colon
	type_specifier_seq

= enumerator_definition
	enumerator
	? enumerator_assignment

= enumerator_assignment
	OPERATOR assignment
	constant_expression

= enumerator
	IDENTIFIER

= namespace_definition
	? KEYWORD inline_
	KEYWORD namespace_
	? IDENTIFIER
	OPERATOR left_brace
	namespace_body
	OPERATOR right_brace

= namespace_body
	declarations

= namespace_alias_definition
	KEYWORD namespace_
	IDENTIFIER
	OPERATOR assignment
	qualified_namespace_specifier
	OPERATOR semicolon

= qualified_namespace_specifier
	? nested_name_specifier
	namespace_name

| using_declaration
	using_declaration_non_root
	using_declaration_root

= using_declaration_non_root
	KEYWORD using_
	? KEYWORD template_
	nested_name_specifier
	unqualified_id
	OPERATOR semicolon

= using_declaration_root
	KEYWORD using_
	OPERATOR colons
	unqualified_id
	OPERATOR semicolon

= using_directive
	attribute_specifiers
	KEYWORD using_
	KEYWORD namespace_
	? nested_name_specifier
	IDENTIFIER
	OPERATOR semicolon

= asm_definition
	KEYWORD asm_
	OPERATOR left_parentheses
	LITERAL
	OPERATOR right_parentheses
	OPERATOR semicolon

| linkage_specification
	linkage_specification_braces
	linkage_specification_no_braces

= linkage_specification_braces
	KEYWORD extern_
	STRING_LITERAL
	OPERATOR left_brace
	declarations
	OPERATOR right_brace

= linkage_specification_no_braces
	KEYWORD extern_
	STRING_LITERAL
	declaration

| attribute_specifier
	normal_attribute_specifier
	alignment_specifier

= normal_attribute_specifier
	OPERATOR left1 left_square_bracket
	OPERATOR left2 left_square_bracket
	attribute_list
	OPERATOR right1 right_square_bracket
	OPERATOR right2 right_square_bracket

| alignment_specifier
	alignment_specifier_type
	alignment_specifier_expression

= alignment_specifier_type
	KEYWORD alignas_
	OPERATOR left_parentheses
	type_id
	? OPERATOR dots
	OPERATOR right_parentheses

= alignment_specifier_expression
	KEYWORD alignas_
	OPERATOR left_parentheses
	assignment_expression
	? OPERATOR dots
	OPERATOR right_parentheses

= attribute_list
	? attribute_dots
	comma_attributes

* comma_attributes
	comma_attribute

= comma_attribute
	OPERATOR comma
	? attribute_dots

= attribute_dots
	attribute
	? OPERATOR dots

= attribute
	attribute_token
	? attribute_argument_clause

| attribute_token
	attribute_identifier_token
	attribute_scoped_token

= attribute_identifier_token
	IDENTIFIER

= attribute_scoped_token
	attribute_namespace
	OPERATOR colons
	IDENTIFIER

= attribute_namespace
	IDENTIFIER

= attribute_argument_clause
	OPERATOR left_parentheses
	balanced_tokens
	OPERATOR right_parentheses

* balanced_tokens
	balanced_token

| balanced_token
	balanced_parentheses
	balanced_square_brackets
	balanced_braces
	balanced_other

= balanced_parentheses
	OPERATOR left_parentheses
	balanced_tokens
	OPERATOR right_parentheses

= balanced_square_brackets
	OPERATOR left_square_bracket
	balanced_tokens
	OPERATOR right_square_bracket

= balanced_braces
	OPERATOR left_brace
	balanced_tokens
	OPERATOR right_brace

= balanced_other
	NONPAREN

= init_declarator_list
	init_declarator
	comma_init_declarators

* comma_init_declarators
	comma_init_declarator

= comma_init_declarator
	OPERATOR comma
	init_declarator

= init_declarator
	declarator
	? initializer

| declarator
	trailing_return_type_declarator
	ptr_declarator

= trailing_return_type_declarator
	noptr_declarator
	trailing_return_type

= ptr_declarator
	ptr_operators
	noptr_declarator

* ptr_operators
	ptr_operator

= noptr_declarator
	noptr_declarator_root
	noptr_declarator_suffixes

* noptr_declarator_suffixes
	noptr_declarator_suffix

| noptr_declarator_root
	noptr_declarator_root_no_parentheses
	noptr_declarator_root_parentheses

= noptr_declarator_root_no_parentheses
	declarator_id
	attribute_specifiers

= noptr_declarator_root_parentheses
	OPERATOR left_parentheses
	ptr_declarator
	OPERATOR right_parentheses

| noptr_declarator_suffix
	parameters_and_qualifiers
	noptr_declarator_suffix_square_brackets

= noptr_declarator_suffix_square_brackets
	OPERATOR left_square_bracket
	? constant_expression
	OPERATOR right_square_bracket
	attribute_specifiers

= parameters_and_qualifiers
	OPERATOR left_parentheses
	parameter_declaration_clause
	OPERATOR right_parentheses
	cv_qualifiers
	? ref_qualifier
	? exception_specification
	attribute_specifiers

* cv_qualifiers
	cv_qualifier

= trailing_return_type
	OPERATOR arrow
	trailing_type_specifier_seq
	? abstract_declarator

| ptr_operator
	ptr_operator_star
	ptr_operator_amp
	ptr_operator_amp_amp
	ptr_operator_name

= ptr_operator_star
	OPERATOR multiply
	attribute_specifiers
	cv_qualifiers

= ptr_operator_amp
	OPERATOR bit_and
	attribute_specifiers

= ptr_operator_amp_amp
	OPERATOR logical_and
	attribute_specifiers

= ptr_operator_name
	nested_name_specifier
	OPERATOR multiply
	attribute_specifiers
	cv_qualifiers

= cv_qualifier
	KEYWORD cv const_ volatile_

= ref_qualifier
	OPERATOR operator_ bit_and logical_and

= declarator_id
	? OPERATOR dots
	id_expression

= type_id
	type_specifier_seq
	? abstract_declarator

| abstract_declarator
	ptr_abstract_declarator
	trailing_return_type_abstract_declarator
	abstract_pack_declarator

= trailing_return_type_abstract_declarator
	? noptr_abstract_declarator
	trailing_return_type

| ptr_abstract_declarator
	ptr_abstract_declarator_no_ptr
	ptr_abstract_declarator_ptr

= ptr_abstract_declarator_no_ptr
	ptr_operators
	noptr_abstract_declarator

= ptr_abstract_declarator_ptr
	ptr_operator
	ptr_operators

= noptr_abstract_declarator
	noptr_abstract_declarator_root
	noptr_declarator_suffixes

| noptr_abstract_declarator_root
	noptr_declarator_suffix
	noptr_abstract_declarator_root_parentheses

= noptr_abstract_declarator_root_parentheses
	OPERATOR left_parentheses
	ptr_abstract_declarator
	OPERATOR right_parentheses

= abstract_pack_declarator
	ptr_operators
	noptr_abstract_pack_declarator

| noptr_abstract_pack_declarator
	noptr_abstract_pack_declarator_dots
	noptr_declarator_suffixes

= noptr_abstract_pack_declarator_dots
	OPERATOR dots

| parameter_declaration_clause
	parameter_declaration_clause_comma
	parameter_declaration_clause_no_comma

= parameter_declaration_clause_comma
	parameter_declaration_list
	OPERATOR comma
	OPERATOR dots

= parameter_declaration_clause_no_comma
	? parameter_declaration_list
	? OPERATOR dots

= parameter_declaration_list
	parameter_declaration
	comma_parameter_declarations

* comma_parameter_declarations
	comma_parameter_declaration

= comma_parameter_declaration
	OPERATOR comma
	parameter_declaration

= parameter_declaration
	attribute_specifiers
	decl_specifier_seq
	? possibly_abstract_declarator
	? equal_initializer

= function_definition
	attribute_specifiers
	decl_specifier_seq
	declarator
	virt_specifiers
	function_body

* virt_specifiers
	virt_specifier

| function_body
	funciton_body_normal
	function_try_block
	function_body_default
	function_body_delete

= funciton_body_normal
	? ctor_initializer
	compound_statement

= function_body_default
	OPERATOR assignment
	KEYWORD default_
	OPERATOR semicolon

= function_body_delete
	OPERATOR assignment
	OPERATOR delete_
	OPERATOR semicolon

| initializer
	brace_or_equal_initializer
	parentheses_initializer

= parentheses_initializer
	OPERATOR left_parentheses
	expression_list
	OPERATOR right_parentheses

| brace_or_equal_initializer
	braced_init_list
	equal_initializer

= equal_initializer
	OPERATOR assignment
	initializer_clause

| initializer_clause
	assignment_initializer_clause
	braced_initializer_clause

= assignment_initializer_clause
	assignment_expression

= braced_initializer_clause
	braced_init_list

= initializer_list
	initializer_clause_dots
	comma_initializer_clauses

* comma_initializer_clauses
	comma_initializer_clause

= comma_initializer_clause
	OPERATOR comma
	initializer_clause_dots

= initializer_clause_dots
	initializer_clause
	? OPERATOR dots

| braced_init_list
	braced_init_list_empty
	braced_init_list_not_empty

= braced_init_list_not_empty
	OPERATOR left_brace
	initializer_list
	? OPERATOR comma
	OPERATOR right_brace

= braced_init_list_empty
	OPERATOR left_brace
	OPERATOR right_brace

= class_specifier
	class_head
	OPERATOR left_brace
	member_specifications
	OPERATOR right_brace

* member_specifications
	member_specification

= class_head
	class_key
	attribute_specifiers
	? class_head_name_virt
	? base_clause

= class_head_name_virt
	class_head_name
	? class_virt_specifier

= class_head_name
	? nested_name_specifier
	class_name

= class_virt_specifier
	SPECIFIC_IDENTIFIER final

= class_key
	KEYWORD keyword class_ struct_ union_

| member_specification
	member_declaration
	access_specifier_colon

= access_specifier_colon
	access_specifier
	OPERATOR colon

| member_declaration
	member_declaration_list
	member_function_definition
	member_using_declaration
	member_static_assert_declaration
	member_template_declaration
	member_alias_declaration

= member_declaration_list
	attribute_specifiers
	decl_specifier_seq
	? member_declarator_list
	OPERATOR semicolon

= member_function_definition
	function_definition
	? OPERATOR semicolon

= member_using_declaration
	using_declaration

= member_static_assert_declaration
	static_assert_declaration

= member_template_declaration
	template_declaration

= member_alias_declaration
	alias_declaration

= member_declarator_list
	member_declarator
	comma_member_declarators

* comma_member_declarators
	comma_member_declarator

= comma_member_declarator
	OPERATOR comma
	member_declarator

| member_declarator
	member_declarator_normal
	member_declarator_initializer
	member_declarator_expression

= member_declarator_normal
	declarator
	virt_specifiers
	? pure_specifier

= member_declarator_initializer
	declarator
	brace_or_equal_initializer

= member_declarator_expression
	? IDENTIFIER
	attribute_specifiers
	OPERATOR colon
	constant_expression

= virt_specifier
	SPECIFIC_IDENTIFIER identifier override final

= pure_specifier
	OPERATOR assignment
	ZERO

= base_clause
	OPERATOR colon
	base_specifier_list

= base_specifier_list
	base_specifier_dots
	comma_base_specifiers

* comma_base_specifiers
	comma_base_specifier

= comma_base_specifier
	OPERATOR comma
	base_specifier_dots

= base_specifier_dots
	base_specifier
	? OPERATOR dots

= base_specifier
	attribute_specifiers
	? base_access_specifier
	base_type_specifier

| base_access_specifier
	base_access_specifier_1
	base_access_specifier_2

= base_access_specifier_1
	KEYWORD virtual_
	? access_specifier

= base_access_specifier_2
	access_specifier
	? KEYWORD virtual_

| class_or_decltype
	class_no_decltype
	decltype_specifier

= class_no_decltype
	? nested_name_specifier
	class_name

| base_type_specifier
	class_or_decltype

= access_specifier
	KEYWORD keyword_ private_ protected_ public_

= conversion_function_id
	KEYWORD operator_
	conversion_type_id

= conversion_type_id
	type_specifier_seq
	ptr_operators

= ctor_initializer
	OPERATOR colon
	mem_initializer_list

= mem_initializer_list
	mem_initializer_dots
	comma_mem_initializers

* comma_mem_initializers
	comma_mem_initializer

= comma_mem_initializer
	OPERATOR comma
	mem_initializer_dots

= mem_initializer_dots
	mem_initializer
	? OPERATOR dots

| mem_initializer
	mem_initializer_parentheses
	mem_initializer_init_list

= mem_initializer_parentheses
	mem_initializer_id
	OPERATOR left_parentheses
	? expression_list
	OPERATOR right_parentheses

= mem_initializer_init_list
	mem_initializer_id
	braced_init_list

| mem_initializer_id
	base_type_specifier
	mem_initializer_id_idetifier

= mem_initializer_id_idetifier
	IDENTIFIER

= operator_function_id
	KEYWORD operator_
	operator_function_id_operator

| operator_function_id_operator
	operator_function_id_operator_array_new
	operator_function_id_operator_array_delete
	operator_function_id_operator_parentheses
	operator_function_id_operator_square_brackets
	operator_function_id_operator_right_shift
	operator_function_id_operator_single_operator

= operator_function_id_operator_parentheses
	OPERATOR left_parentheses
	OPERATOR right_parentheses

= operator_function_id_operator_square_brackets
	OPERATOR left_square_bracket
	OPERATOR right_square_bracket

= operator_function_id_operator_right_shift
	OPERATOR right_shift_1
	OPERATOR right_shift_2

= operator_function_id_operator_array_new
	OPERATOR new_
	OPERATOR left_square_bracket
	OPERATOR right_square_bracket

= operator_function_id_operator_array_delete
	OPERATOR delete_
	OPERATOR left_square_bracket
	OPERATOR right_square_bracket

= operator_function_id_operator_single_operator
	OPERATOR operator_ new_ delete_ plus minus multiply divide modulo bit_xor bit_or bit_and complement logical_not assignment less greater plus_assignment minus_assignment multiply_assignment divide_assignment modulo_assignment xor_assignment and_assignment or_assignment left_shift equal not_equal less_equal greater_equal logical_and logical_or increment decrement comma arrow_star arrow

= literal_operator_id
	KEYWORD operator_
	EMPTY_STRING
	IDENTIFIER

= template_declaration
	KEYWORD template_
	OPERATOR less
	template_parameter_list
	close_angle_bracket
	declaration

= template_parameter_list
	template_parameter
	comma_template_parameters

* comma_template_parameters
	comma_template_parameter

= comma_template_parameter
	OPERATOR comma
	template_parameter

| template_parameter
	type_parameter
	parameter_declaration

| type_parameter
	type_paramter_assign
	type_paramter_no_assign
	type_parameter_template

= type_paramter_no_assign
	KEYWORD keyword class_ typename_
	? OPERATOR dots
	? IDENTIFIER

= type_paramter_assign
	KEYWORD keyword class_ typename_
	? IDENTIFIER
	OPERATOR assignment
	type_id

= type_parameter_template
	KEYWORD template_
	OPERATOR less
	template_parameter_list
	close_angle_bracket
	KEYWORD class_
	? type_parameter_template_suffix

| type_parameter_template_suffix
	type_parameter_template_suffix_assign
	type_parameter_template_suffix_no_assign

= type_parameter_template_suffix_no_assign
	? OPERATOR dots
	IDENTIFIER

= type_parameter_template_suffix_assign
	? IDENTIFIER
	OPERATOR assignment
	id_expression

= close_angle_bracket
	OPERATOR operator_ greater right_shift_1 right_shift_2

| template_id
	simple_template_id
	function_template_id
	literal_operator_template_id

= function_template_id
	operator_function_id
	OPERATOR less
	? template_argument_list
	close_angle_bracket

= literal_operator_template_id
	literal_operator_id
	OPERATOR less
	? template_argument_list
	close_angle_bracket

= template_argument_list
	template_argument_dots
	comma_template_arguments

* comma_template_arguments
	comma_template_argument

= comma_template_argument
	OPERATOR comma
	template_argument_dots

= template_argument_dots
	template_argument
	? OPERATOR dots

| template_argument
	template_argument_expression
	template_argument_type
	template_argument_id

= template_argument_expression
	constant_expression

= template_argument_type
	type_id

= template_argument_id
	id_expression

= typename_specifier
	KEYWORD typename_
	nested_name_specifier
	typename_specifier_name

| typename_specifier_name
	typename_specifier_identifier
	typename_specifier_template

= typename_specifier_identifier
	IDENTIFIER

= typename_specifier_template
	? KEYWORD template_
	simple_template_id

= explicit_instantiation
	? KEYWORD extern_
	KEYWORD template_
	declaration

= explicit_specialization
	KEYWORD template_
	OPERATOR less
	close_angle_bracket
	declaration

= try_block
	KEYWORD try_
	compound_statement
	handler
	handlers

* handlers
	handler

= function_try_block
	KEYWORD try_
	? ctor_initializer
	compound_statement
	handler
	handlers

= handler
	KEYWORD catch_
	OPERATOR left_parentheses
	exception_declaration
	OPERATOR right_parentheses
	compound_statement

| exception_declaration
	exception_declaration_no_dots
	exception_declaration_dots

= exception_declaration_no_dots
	attribute_specifiers attribute_specifiers_1
	type_specifier
	type_specifiers
	attribute_specifiers attribute_specifiers_2
	? possibly_abstract_declarator

= exception_declaration_dots
	OPERATOR dots

| possibly_abstract_declarator
	declarator
	abstract_declarator

= throw_expression
	KEYWORD throw_
	? assignment_expression

| exception_specification
	dynamic_exception_specification
	noexcept_specification

= dynamic_exception_specification
	KEYWORD throw_
	OPERATOR left_parentheses
	? type_id_list
	OPERATOR right_parentheses

| type_id_list
	type_id_dots
	comma_type_ids

* comma_type_ids
	comma_type_id

= comma_type_id
	OPERATOR comma
	type_id_dots

= type_id_dots
	type_id
	? OPERATOR dots

= noexcept_specification
	KEYWORD noexcept_
	? noexcept_specification_suffix

= noexcept_specification_suffix
	OPERATOR left_parentheses
	constant_expression
	OPERATOR right_parentheses