Message from C, C++ talks

July 2019

— Do I really need to? If I know the address(which is same throughout the program) why is there a need to save it

Message permanent page

— Wtf

— A needs to know the address, not you

— Wtf. Right after the call you lost this address. You don't know it. It's gone

— 

Of cors, a has the address (which is same throughout the program).
I am sorry if I am not able to explain my point well

— But if it doesn't work....

— You can't get it outside, cause only b holds it

— And b is gone

— Wait...I will gdb and double check the addresses pointed to by a before foo and after foo.

— If they are same, my point stand valid..right?

— No

— Drop gdb and think about how pass-by-value works

— Why

— Or add a lot if debug print

— Like, print b before return and a after call