Size of a pointer

Question

It doesn't matter that for which datatype the pointer is initialised it will always hold an integer value hence it's size will always be 4
https://code.sololearn.com/cLEZ8RI9B2YD/?ref=app

Answer 1

It won't always be 4, it depends on the architecture. Ex. pointers on 64 bit systems are 8 bytes

Answer 2

@AMIT KUMAR It still won't always be the same size as a regular int ;). Depending on the compiler, pointers could be 8 bytes while integers could be only 4 bytes.

Compilers may do that for a couple reasons like:
1) backwards compatibility
2) you can store two 32 bit integers in one 64 bit register
3) reducing memory consumption

Answer 3

I agree with your point @aklex , it will always be equal to the size of an int that vary acc. to the arch.

Answer 4

I didn't know that
thanks @aklex