Error : Operand for operator “++” must be an lvalue

Question

In C++,

i = ++++j;

works fine in the code but when I use,

i = j++++;

I receive the following error:

Answer 1

you are getting this error because the postfix operator returns a value and not a reference. But for clarity you should probably not do i=j++++; it might be more clear to say i = j += 2; or separate the lines into i = j+2; j+=2; or j+=2; i = j;.