tail-call-optimization

What is the Scala annotation to ensure a tail recursive function is optimized?

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From the “Tail calls, @tailrec and trampolines” blog post: In Scala 2.8, you will also be able to use the new @tailrec annotation to get information about which methods are optimised. This annotation lets you mark specific methods that you hope the compiler will optimise. You will then get a warning if they are not … Read more

What is tail call optimization?

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Tail-call optimization is where you are able to avoid allocating a new stack frame for a function because the calling function will simply return the value that it gets from the called function. The most common use is tail-recursion, where a recursive function written to take advantage of tail-call optimization can use constant stack space. … Read more

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