You've showed that Deparse considers for (;;) {} and while (1) {} equivalent (which means there's a strong chance that they are very similar). This is consistent with while (1) {} getting optimised to for (;;) {}, so it doesn't support your contradiction.

You've showed that Deparse considers while (1) {} to be more readable than for (;;) {} on average. This doesn't support your contradiction.

So you didn't show that while (1) {} doesn't get optimised to for (;;) {}. Easy to prove that it does, though. Note the lack of any condition in the following: 

>perl -MO=Concise,-exec -e"while (1) {}"
1  <0> enter
2  <;> nextstate(main 3 -e:1) v:{
3  <{> enterloop(next->5 last->6 redo->4) v
4  <0> stub v
5  <0> unstack v
-e syntax OK

[download]

For comparison, 

>perl -MO=Concise,-exec -e"for (;;) {}"
1  <0> enter
2  <;> nextstate(main 3 -e:1) v:{
3  <{> enterloop(next->5 last->6 redo->4) v
4  <0> stub v
5  <0> unstack v
-e syntax OK

[download]

In reply to Re^7: Memory leak! by ikegami
in thread Memory leak! by joeymac

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