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| author | Simon Hausmann <simon.hausmann@theqtcompany.com> | 2015-07-17 15:06:22 +0200 |
|---|---|---|
| committer | Simon Hausmann <simon.hausmann@theqtcompany.com> | 2015-07-17 16:35:42 +0200 |
| commit | b2603b76655ac819e43c063bb6f16bc95f358083 (patch) | |
| tree | 0fbe2c367ebfffdb70e9e3f21a7cf408bafd9626 /src/corelib/doc | |
| parent | 99b94aadf875c822afb6c2580e43355ac392ac92 (diff) | |
| parent | 756266d01560157b7274e466b9ffc1b0e2ef9a1f (diff) | |
Merge remote-tracking branch 'origin/5.5' into HEAD
Conflicts:
src/plugins/platforms/windows/qwindowsopengltester.cpp
Change-Id: Ia7abeba9395ccf84e2fa81b91a5725a86dedb9fe
Diffstat (limited to 'src/corelib/doc')
| -rw-r--r-- | src/corelib/doc/src/containers.qdoc | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/corelib/doc/src/containers.qdoc b/src/corelib/doc/src/containers.qdoc index 1979c45e17..f8d0d3eb05 100644 --- a/src/corelib/doc/src/containers.qdoc +++ b/src/corelib/doc/src/containers.qdoc @@ -601,6 +601,13 @@ container. It only affects the copy, which is probably not what you want. + An alternative to Qt's \c foreach loop is the range-based \c for that is + part of C++ 11 and newer. However, keep in mind that the range-based + \c for might force a Qt container to \l{Implicit Sharing}{detach}, whereas + \c foreach would not. But using \c foreach always copies the container, + which is usually not cheap for STL containers. If in doubt, prefer + \c foreach for Qt containers, and range based \c for for STL ones. + In addition to \c foreach, Qt also provides a \c forever pseudo-keyword for infinite loops: |