wats the diference btwen constant pointer and pointer to a
constant.pls give examples.
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Answer Posted / monika sethi
CONSTANT POINTER: A pointer will always point to one
object.it is initialized at the time of declaration.
e.g
int i=20,j;
int* const p=&i;
cout<<*p; //will print 20
*p=30;//works....i.e the value pointed by the constant
pointer can be changed
//now if write
p=&j;//error
POINTER TO CONSTANT
it can be declared as
const int *p;
or
int const *p;
int i=10,j=30;
p=&i;
cout<<*p;
*p=10//error...the value is constant pointed by p
//pointer p is not constant so it can now point to another
variable of integer type
//so if we write
p=&j //it will now point to a variable j
that's all.........
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