Annex A (informative) Grammar summary [gram]

A.10 Special member functions [gram.special]

conversion-function-id:
	operator conversion-type-id

conversion-type-id:
	type-specifier-seq conversion-declarator${}_{opt}$

conversion-declarator:
	ptr-operator conversion-declarator${}_{opt}$

ctor-initializer:
	: mem-initializer-list

mem-initializer-list:
	mem-initializer ...${}_{opt}$
	mem-initializer-list , mem-initializer ...${}_{opt}$

mem-initializer:
	mem-initializer-id ( expression-list${}_{opt}$ )
	mem-initializer-id braced-init-list

mem-initializer-id:
	class-or-decltype
	identifier