On Tuesday, 14 April 2015 at 07:30:22 UTC, bearophile wrote:
Generally you prefer something that's guaranteed to be allocated on the stack when it's small and there's enough stack. An array allocation annotated with "scope", perhaps.
VLAs can save stackspace compared to fixed max sized arrays, but add recursion and try to figure out the right threshold between small and large? You can't? So you need whole program analysis...
