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Yeah, but aren't 4000 elements a bit much for a stack allocated array?
4000 floats take about 16 KB. If your function is not recursive and it's not much transitively recursive, then I think it's acceptable. But how much stack are your other functions using? You have to estimate if you have enough stack space. Today it's very easy to have 50+ MB of stack, if necessary. DMD on Windows supports a linker command like this:
-L/STACK:200000000 Bye, bearophile
