Declaring varibale name in paren

[Josuan]

It seems that a variable can be declared with parenthesis. For example:

int main() {
int (x);
x = 5;
}

In this case it is useless. But is there any circumstances where
parenthesis are really needed ? if not why allow this ?

Thanks you in advance.

[Victor Bazarov]

Josuan wrote:

It seems that a variable can be declared with parenthesis. For example:

int main() {
int (x);
x = 5;
}

In this case it is useless. But is there any circumstances where
parenthesis are really needed ? if not why allow this ?

To declare a reference to an array, for example

int (&x)[5];

or to declare a pointer to a function

int (*ptr)(int,doub le);

In all cases I can think of the parentheses are there to give higher
priority to the asterisk or the ampersand that accompany the variable
name. If the parentheses were omitted, then the former case would be
come an [illegal] array of references to int and the latter would be a
declaration of a function named 'ptr' that returns a pointer to int.

V
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