How is printf statement interpreted?

Question

How is the following line interpreted by GCC compiler:

printf(\"HELLO\");  

I want to know this because when I am running following program

Answer 1

This is an artifact of C pointer-arithmetic; printf is just a red herring.

The type of a string literal (such as "Good morning") is const char *. Your code is equivalent to:

const char *p = "Good morning";
p = p + 5;
printf(p);

Adding a pointer and an integer produces a pointer to the 5th element in the sequence.