When an integer is subtracted from a pointer variable, the value of the pointer variable is decremented by the integer times half the size of the memory to which the pointer is pointing.
true
false

False

Explanation:

When you apply subtraction (arithmetic operation) on Pointer variable ,then pointer variable is decremented by the (integer*sizeofmemory).

Example

            #include<stdio.h>

           //driver function

             int main()

          {

            float *ptr=(float *)100; //initializing  ptr as pointer type

            ptr=ptr-2; //subtracting pointer by 2(integer)

           printf("New Value of ptr is %u",ptr);

            return 0;

          }

Output

New Value of ptr is 92

Explanation of Code

ptr = ptr   - 2 * (sizeof(float))

   = 100  - 2 * (4) //float size is 4 bytes

   = 100  - 8

   = 92