HP 3000 Manuals HP 3000 Manuals
Primary Expressions
The term primary expression is used in defining various C expressions.
Syntax
primary-expression ::=
identifier
constant
string-literal
(expression)
Description
A primary expression is an identifier, a constant, a string literal, or
an expression in parentheses that may or may not be an lvalue expression.
Primary expressions are the basic components of all expressions.
An identifier can be a primary expression provided that you have declared
it properly. A single identifier may or may not be an lvalue expression.
A function name is not an lvalue.
A constant is a primary expression and can never be an lvalue.
A string literal is a primary expression. The type of the string literal
is "array of characters." If the string literal appears in any context
other than as the operand of sizeof, the operand of unary &, or the
initializer for an array of characters, it is converted to a pointer to
the first character.
Examples
identifier: var1
constant: 99
string-literal: "hi there"
( expression ) (a+b)