Increment / Decrement Operator Behavior

[Xinok]

The increment and decrement operators are highly dependent on 
operator precedence and associativity. If the actions are 
performed in a different order than the developer presumed, it 
could cause unexpected behavior.

I had a simple idea to change the behavior of this operator. It 
works for the postfix operators but not prefix. Take the 
following code:

size_t i = 5;
writeln(i--, i--, i--);

As of now, this writes "543". With my idea, instead it would 
write, "555". Under the hood, the compiler would rewrite the code 
as:

size_t i = 5;
writeln(i, i, i);
--i;
--i;
--i;

It decrements the variable after the current statement. While not 
the norm, this behavior is at least predictable. For non-static 
variables, such as array elements, the compiler could store a 
temporary reference to the variable so it can decrement it 
afterwards.

I'm not actually proposing we actually make this change. I simply 
thought it was a nifty idea worth sharing.