While I was going through my questions, I found the these questions:
1) int*p;
2) int p(char*a)
3) int(*p(char*a))
4) int *p(void)
5) int*(*p[10])(char a)
(Please correct me if I'm wrong with my answers here.)
Q.1. is declaring a integer pointer variable 'p'
Q.2. is declaring a function p with a char pointer variable 'a' as argument.
Q.4. is declaring a void pointer(Maybe).
Can someone answer what these statements mean (and correct my answers if I'm wrong). Please answer as simple as possible. I'm quite new to programming.
Q.1. Correct.
Q.2. You forgot to mention that the function, when called, returns an integer—so, that, in the program's body, one can write an integer expression like p(a) + 1—but, otherwise, correct.
Q.4. This one is tricky. Here you have a function p() which can be called with no arguments, but which returns a pointer to integer; or, if you prefer to say it another way, which returns the address of an integer. In the program's body, one might use it for example as *p() + 1.
You're doing fine. The usual way to read such declarations is
p outward, and then, once all modifiers have been exhausted to the right,p outward.Like this: 8765p1234.
The exception is if parentheses around the identifier intervene, in which case: 87(43p12)56.
The last gets tricky, because there exist some expressions in which the identifier itself is omitted, so you have to read it like 87(4312)56.