HP 3000 Manuals HP 3000 Manuals
Type Names
A type name is syntactically a declaration of an object or a function of
a given type that omits the identifier. Type names are often used in
cast expressions and as operands of the sizeof operator.
Syntax
type-name ::=
specifier-qualifier-list [abstract-declarator]
abstract-declarator ::=
pointer
[pointer] direct-abstract-declarator
direct-abstract-declarator
( abstract-declarator )
[direct-abstract-declarator] [ [constant-expression] ]
[direct-abstract-declarator] ( [parameter-type-list] )
Description
Type names are enclosed in parentheses to indicate a cast operation. The
destination type is the type named in the cast; the operand is then
converted to that type.
A type name is a declaration without the identifier specified. For
example, the declaration for an integer is int i. If the identifier is
omitted, only the integer type int remains.
Examples
int int
int * Pointer to int
int () Function returning an int
int *() Function returning a pointer to int
int (*)() Pointer to function returning an int
int [3]; Array of 3 int
int *[3]; Array of 3 pointers to int
int (*)[3]; Pointer to an array of 3 int
The parentheses are necessary to alter the binding order in the cases of
pointer to function and pointer to array. This is because function and
array declarators have higher precedence than the pointer declarator.