Pointers to Functions

[Ralph]

I am working with pointers and functions concept in C programming.
Suppose there is an integer pointer exforsys it can be declared in C programming language as
int *exforsys;
or
int* exforsys;

That is the * symbol can be placed either near the variable name or near the data type. Both are allowed and refer the same meaning.

But when I declare pointers to functions using the same concept as below
int* (exforsys) (char* test);

The above gives me error. I want to know the reasons for the error?

[caradoc]

In your declaration you have not missed the brackets but placed it wrongly. Only for simple data type pointer declarations * symbol can be placed either near the variable name or near the data type. It is not allowed for pointers to functions declaration.

It is a must place for placing the brackets around *exforsys as
int (*exforsys) (char* test);

If not the declaration would be taken as function by the compiler. So one has to be very careful while declaring the Pointers to Functions and must follow the syntax usage.