const int *

[Shraddha Gautam]

what is meaning of const int * & int * const.

[James R Twine]

The difference is where the const applied; is it applied to the pointer, or what is being pointed to.  The first one is a pointer to a const int, meaning that the pointer can change (you can have the pointer point to a different int), but not what is pointed to.    Peace!

-=- James
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[KarstenK]

const int * a constant pointer to an int int * const a int pointer to a constant int it is a little confusing. And it isnt the best way to code such thing.

Greetings from Germany

[zakkas2483]

i Think u r not clear from above two ans so i m explaing u ... Pointer To Const syntex: int const *ptr; or const int *ptr; that means they are pointer to const int. so we can't change the value of they are pointing. we can change what they r pointing.... for example: int i = 10; int b = 20; int const *ptr = & i; (*ptr)++ ; // will give error ptr = & b ; // OK Const pointer: syntex : int * const ptr1; it is const pointer so what it is pointing is const so we must initialize at the time of declaration so synetx is like int * const ptr1 = & someintegervarible; for example: int i = 10; int b = 20; int * const ptr1 = & i; //required initialization (*ptr1)++ ;//OK ptr1 = & b; // Error we also have const pointer to const : syntex : int const * const ptr2 = & i; // required initialization or const int * const ptr2 = & i; // required initialization Neither address which that pointer is pointing nor the value that pointer pointing will change. Hiren Thakkar