Op 2017-08-16, Steve D'Aprano schreef <steve+pyt...@pearwood.info>: > 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? > > Standard library functions implementing an explicitly "parallel map" > or "threaded map" are also relevant. (Less interested in third-party > libraries, unless they're practically a standard for the language in > question.)
C++17 has such a facility in its standard library. std::transform (and many other functions operating on sequences, but you asked for a map() equivalent) takes an optional "execution_policy" parameter which indicates if the operation should be run sequentially (the default) or can be parallellized. See: http://en.cppreference.com/w/cpp/algorithm/transform Stephan -- https://mail.python.org/mailman/listinfo/python-list
