I've been doing some interesting reading over at
Dan's blog and it has prompted a question, namely the one in the topic. Coroutines I'm pretty sure I understand, this example from
Dan's What the heck is: a coroutine series seems to make it abundantly clear:
coroutine foo {
yield 1;
yield 2;
yield 3;
}
print foo(), "\n";
print foo(), "\n";
print foo(), "\n";
print foo(), "\n";
print foo(), "\n";
print foo(), "\n";
prints
1
2
3
1
2
3
Thats nice and simple and I understand it. But what is the difference between this and a continuation? Dan's article on continuations makes mention of capturing the control stack and restoring it, but isn't that what a coroutine does?
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