https://issues.dlang.org/show_bug.cgi?id=8764
--- Comment #2 from github-bugzi...@puremagic.com --- Commit pushed to master at https://github.com/D-Programming-Language/phobos https://github.com/D-Programming-Language/phobos/commit/4113afc85a30b0413ee710cfd9300ca945908836 Fix issue 8764 Transposed can only work with ranges of ranges if the subranges are assignable. Add signature constraints. Fix forward range bugs (should use .save instead of just copying the range object). Add unittests. --