Runtime error in the following code

Question

The following code,according to me should run successfully,but fails at runtime.I don\'t get the reason:

 void main()
 {
   int arr[5][3]={1,2,3,4,5,6,7,8,9,10,1         


        

Answer 1

With the line

int **p=&m

you create a pointer to a pointer to an integer.

Then, you add one to the address - one memory address, that is, not one times the number of bytes to point to the next integer.

Then you deference it twice:

• both dereferences will return unspecified values, so the second dereference may break memory boundaries for the OS you are using,
• both times it will be off boundary alignmemnt, which may cause issues in some OSes.