6e4d7bbb0b
This suggestion keeps track of the most left node. The point is that constBegin() becomes a lot faster. That speeds up iteration a bit, and makes it O(1) to get the first element. The penalty in insert and remove is very small. On large trees it seems to be less than 1%. It should be noticed that constBegin() is a very common hint on my planned change to 5.1, and this opperation will without this patch cost 2 x log N. One when the user calls the hint with begin - and one where it is compared with begin. Other std::maps has a very fast begin(). E.g http://www.cplusplus.com/reference/stl/map/begin/ (begin with constant time) Change-Id: I221f6755aa8bd16a5189771c5bc8ae56c8ee0fb4 Reviewed-by: Lars Knoll <lars.knoll@digia.com> |
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| .. | ||
| auto | ||
| baselineserver | ||
| benchmarks | ||
| global | ||
| manual | ||
| shared | ||
| README | ||
| tests.pro | ||
This directory contains autotests and benchmarks based on QTestlib. In order
to run the autotests reliably, you need to configure a desktop to match the
test environment that these tests are written for.
Linux X11:
* The user must be logged in to an active desktop; you can't run the
autotests without a valid DISPLAY that allows X11 connections.
* The tests are run against a KDE3 or KDE4 desktop.
* Window manager uses "click to focus", and not "focus follows mouse". Many
tests move the mouse cursor around and expect this to not affect focus
and activation.
* Disable "click to activate", i.e., when a window is opened, the window
manager should automatically activate it (give it input focus) and not
wait for the user to click the window.