C Programming - Structures, Unions, Enums - Discussion

When you do c[1].courseno it will print the 'c[1]' array 1st variable ie 103 then (*(c+2)).coursename it will go into c[2] array's coursename contents.

Thanks praveen.

Ok, pravin said is right. I agree with him.

Anyone can explain in detail.

What is use of pointer here? any special use? will anyone explain that please.

Thanks.

The c[1].courseno points to 103 ( hope you agreed).

In (*(c+2)).coursename , *(c+2) is same as writing c[2] that is c[2] or *(c+2) points to {104, "DotNet"}

Therefore (*(c+2)).coursename or u can say c[2].coursename will give DotNet.

Take care :)

Thank you Apurva.

When we refer c[1], it returns 103.

And when we are using (* (c+2) ). Coursename) it refers to c[2]. Coursename because c itself points to starting address of array c. C+2 is refers to c[2]address. For getting the value in that location used * deference operator.

The struct is a user defined data type,means defines by user for avoid multiple declaration in the program body.this data type is accessed by a Dot "." operator. Fine......

Here struct for "course" variable. Now

printf("%d", c[1].courseno);

will return courseno stored at 2nd array location of c,ie c[1] bcz by default array initiates with index 0 and it is 1st location of that array...while return type in printf function is integer.....
and

printf("%d", c[1].courseno);

ans= 103

we can write c[2] as similar to (*(c+2)) and vise versa.
hence using above funda

printf("%s\n", (*(c+2)).coursename);
return type in printf function is string, therefore

it gives answer

DotNet

I thought you cleared.

Thank you for Apurva Nigam.