where does function declerations and func definations gets memory/stored?
where does 'printf()' definations stored?

Hi karkeraashwith,

Function decleration stored in .obj & function definition stored in .h & printf definition stored in .libc.

Thanks,
Riju.

Both DECLARATION : AND DEFINITION go into the text section in memory, after a C program is compilled and linked.
In general , function declarations will be in .h files, and function definitions will go into .c files.
During compillation , when the compiller comes across statement of the function call , it checks the function declarations(proto types) which will be used for validation. If there is type mis-match, error will be thrown.

Coming to printf: It is standard library function. If static linkage is used, then the linker copies all library functions(here printf) used in the program into the executable image. If dynamic linkage is used, only link to shared library will be placed in the executable image.

how to delete an element in between a linked list?

If you want to delete the first element, make the pointer.head(this points to the beginning of the linked list) pointer to point to the second element.

pointer.head = pointer.next

If you want to delete the last element, set the pointer.next(this points to the next element of the linked list) pointer of the last but second element to NULL.

p = pointer.head;
while (p != NULL)
{
p = p.next;
if p = NULL
{
q = NULL;
break;
}
q = p;
}

If you want to delete any other element, make the pointer.next(this points to the previous element of the linked list) pointer to point to the next element in the list.

printf() defination stored in <stdio.h> library or we say header ile

amit gupta