Unexpected output c++ pointers

Question

Why the output is such ?

https://www.sololearn.com/post/108346/?ref=app

In sololearn lesson, output is something else

https://www.sololearn.com/learn/CPlusPlus/1630/

Answer 1

It just depends from compiler to compiler and pc to pc I guess.
They may be the same number to you, but the actual address may be completely different due to https://en.wikipedia.org/wiki/Virtual_address_space

gcc on my pc ( and sololearn too appearently ) always seems to give me the same address too, but vc++ gives me a different one each time.

You can try your code here:
https://rextester.com/l/cpp_online_compiler_visual

This one does give a different address each time.

Answer 2

Anna

I get same result each time in both SL editor and My PC

Answer 3

Anna

I am 100% sure

Answer 4

@~swim~
Sorry, I can't directly tag you, as I am using PC now.

I properly recompiled my code using key: F9
It rebuilded the binary file and ran my code. I am sure, the problem is not that.

I guess, the output is such due to my PC || My Compiler.

@Dennis
The web compiler you shared link, I ran code in it. It gave me different results each time I ran.

I finally understood why this happens. The whole game is of memory.

Answer 5

The & operator returns the memory address where the variable is stored. If you run the code multiple times on your pc, you'll get a different value each time.

Answer 6

SPACE That's interesting, are you sure? 🤔 The addresses on your pc might look very similar, but they should be different each time

Answer 7

Dennis I noticed him using GCC and I get different addresses each time with GCC and Ubuntu 😁

I didn't know that this might be dependent on the pc or compiler. Learning never stops I guess

Answer 8

Because you are printing address of scores not the value of scores