1 | & | address operator |
2 | * | de-referencing operator |
3 | -> | structure pointer operator |
Example:
In this example you will see how pointer works.
A complete example
#include <stdio.h>
void main()
{
char c ='A';
char *cptr;
cptr=&c;
printf("\nThe address of c is\t%p",&c);
printf("\nValue of c is\t\t%c",c);
printf("\n\nThe address of cptr is\t %p",&cptr);
printf("\nValue of cptr is\t%p",cptr);
printf("\nAccess variable which cptr point to is\t%c",*cptr);
}
void main()
{
char c ='A';
char *cptr;
cptr=&c;
printf("\nThe address of c is\t%p",&c);
printf("\nValue of c is\t\t%c",c);
printf("\n\nThe address of cptr is\t %p",&cptr);
printf("\nValue of cptr is\t%p",cptr);
printf("\nAccess variable which cptr point to is\t%c",*cptr);
}
Output:
From the output of above example you can see that the address of these two variables are different and the pointer variable holding the address of another variable which it point to.
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