Relation between Pointers and Structures in C Language

Relation between Pointers and Structures in C :-

  • struct inventory { char name[30];
  • int number;
  • float price; }
  • product[2],*p;
  • p = product; // assign zeroth element
  • p -> name is same as (*p).name
  • ++ptr->count increments count
  • (++ptr)->count increments ptr and then return count
  • ptr++->count is legal and increments ptr after accessing count
  • *ptr->p fetches whatever p points to
  • *ptr->p++ increments p after accessing whatever it points to
  • (*ptr->p)++ increments whatever p points to
  • *ptr++->p increments ptr after accessing whatever it points to

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More Useful Topics...

 

History Of C..

In the beginning was Charles Babbage and his Analytical Engine, a machine
he built in 1822 that could be programmed to carry out different computations.
Move forward more than 100 years, where the U.S. government in
1942 used concepts from Babbage’s engine to create the ENIAC, the first
modern computer.
Meanwhile, over at the AT&T Bell Labs, in 1972 Dennis Ritchie was working
with two languages: B (for Bell) and BCPL (Basic Combined Programming
Language). Inspired by Pascal, Mr. Ritchie developed the C programming
language.

My 1st Program...


#include
#include
void main ()
{
clrscr ();
printf ("\n\n\n\n");
printf ("\t\t\t*******Pankaj *******\n");
printf ("\t\t\t********************************\n");
printf ("\t\t\t\"Life is Good...\"\n");
printf ("\t\t\t********************************");
getch ();
}

Next Step...


#include
#include

void main ()
{
clrscr ();
printf ("\n\n\n\n\n\n\n\n");
printf ("\t\t\t --------------------------- \n\n");

printf ("\t\t\t | IGCT, Info Computers, INDIA | \n\n");
printf ("\t\t\t --------------------------- ");

getch ();

}

Hits!!!