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🧪 Pure

The function has no side effects and always returns the same results given the same arguments.

Calls to such a function may be eliminated, if its results are not used. Moreover, the function can be memoized, i.e. we can remember its results for a set of arguments. Finally, a pure function can be called at any time, allowing reordering of calls or parallelization.


  • Function
Stub code in purity.sdsstub
annotation Pure