caching attribute reference

[Ofnuts]

i'm trying to think of a way to test it that itself won't be optimized.  for example putting some code in a loop could end up with it recognize no change so 10000046 times around won't do so much.

The difficulty is finding something the compiler cannot optimize and that doesn't take time (because you are possibly looking for a handful of processor cycles).

Draw a random integer (to avoid a literal the compiler could optimize). Add it to some variable on each iteration, print the variable at the end (otherwise the compiler may thing it's useless). If you think the compiler could just do a multiplication, then use an array of two ints, and add the number to either member of the array depending on parity.