Is the sizeof(some pointer) always equal to four?

Question

For example: sizeof(char*) returns 4. As does int*, long long*, everything that I\'ve tried. Are there any exceptions to this?

Answer 1

8 bit and 16 bit pointers are used in most low profile microcontrollers. That means every washing machine, micro, fridge, older TVs, and even cars.

You could say these have nothing to do with real world programming. But here is one real world example: Arduino with 1-2-4k ram (depending on chip) with 2 byte pointers.

It's recent, cheap, accessible for everyone and worths coding for.