Branch: refs/heads/master
Home: https://github.com/D-Programming-Language/phobos
Commit: f81de7d9b9a9d4d8af4615306b2b759f845bd792
https://github.com/D-Programming-Language/phobos/commit/f81de7d9b9a9d4d8af4615306b2b759f845bd792
Author: Peter Alexander <[email protected]>
Date: 2015-01-04 (Sun, 04 Jan 2015)
Changed paths:
M std/array.d
Log Message:
-----------
Fix Issue 13877 - join assumes forward range can be cheaply iterated twice
e.g. with `r.map!(someExpensiveFunction).join`, `join` would previously iterate
twice: once to compute length, and again to build up the result. The extra
iteration to compute length may be disproportionately expensive, so we now only
precompute length for built-in arrays, since we know those are cheap to iterate.
The heuristic could be improved over time, although I can't think of anything
better right now.
https://issues.dlang.org/show_bug.cgi?id=13877
Commit: ba100ff803f8d266f97e9c02503e19f961be1e7e
https://github.com/D-Programming-Language/phobos/commit/ba100ff803f8d266f97e9c02503e19f961be1e7e
Author: Andrei Alexandrescu <[email protected]>
Date: 2015-01-07 (Wed, 07 Jan 2015)
Changed paths:
M std/array.d
Log Message:
-----------
Merge pull request #2837 from Poita/Issue13877
Fix Issue 13877 - join assumes forward range can be cheaply iterated twice
Compare:
https://github.com/D-Programming-Language/phobos/compare/cddad765b402...ba100ff803f8_______________________________________________
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