On Wednesday, August 16, 2017 at 8:24:46 PM UTC+5:30, Steve D'Aprano wrote: > Over in another thread, we've been talking about comprehensions and their > similarities and differences from the functional map() operation. > > Reminder: > > map(chr, [65, 66, 67, 68]) > > will return ['A', 'B', 'C']. > > My questions for those who know languages apart from Python: > > Are there language implementations which evaluate the result of map() (or its > equivalent) in some order other than the obvious left-to-right first-to-last > sequential order? Is that order guaranteed by the language, or is it an > implementation detail?
There are dozens of parallel/concurrent languages: https://en.wikipedia.org/wiki/List_of_concurrent_and_parallel_programming_languages > > Standard library functions implementing an explicitly "parallel map" > or "threaded map" are also relevant. Here's the peach (parallel-each) 'adverb in Q/K http://code.kx.com/wiki/Reference/peach In more mainstream languages: parallel map in Julia https://docs.julialang.org/en/latest/manual/parallel-computing Haskell's parmap et al: http://chimera.labs.oreilly.com/books/1230000000929/ch03.html#sec_par-kmeans-perf -- https://mail.python.org/mailman/listinfo/python-list
