Facts you don't know about C language...

Most of us think that c language doesn't support polymorphism. But actually it does, think i am wrong, actually i can prove it to you..

Consider a normal printf statement, it looks something like :

              printf("hai");

It also accepts another type of arguments:

              printf("%d",&a);  //assume a is an integer variable.

Now printf is an in-build function, it accepts two different type of arguments. In the first example it accepts a string variable , in the second one it accepts an integer variable, moreover it accepts different number of arguments, this points to the concept of function overloading which is a branch of polymorphism.

C even supports operator overloading:

& symbol-- the address operator as most of us  know..but it can also be noted as a bit and operator
 too. Hence a single operator can be used for multiple purposes,

There is another operator that is used for two operations.

* one is used as a pointer.
 * arithmetic multiplication operator.

Most of us don't look deeply into these facts, C also supports functional and operator overloading, but it is limited to the system built-in functions,
Now in C++ these capabilities are extended to the user defined functions, and thus the concept of polymorphism emerges.

Hope this was something new....:)