Description |
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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.
