5 Lexical conventions [lex]

5.13 Literals [lex.literal]

5.13.1 Kinds of literals [lex.literal.kinds]

There are several kinds of literals.22
literal:
	integer-literal
	character-literal
	floating-literal
	string-literal
	boolean-literal
	pointer-literal
	user-defined-literal
The term “literal” generally designates, in this document, those tokens that are called “constants” in ISO C.