# qstring-insensitive-allocation Finds unneeded memory allocations such as `if (str.toLower().contains("foo"))` which you should fix as `if (str.contains("foo", Qt::CaseInsensitive))` to avoid the heap allocation caused by toLower(). Matches any of the following cases: `str.{toLower, toUpper}().{contains, compare, startsWith, endsWith}()` #### Pitfalls `Qt::CaseInsensitive` is different from `QString::toLower()` comparison for a few code points, but it should be very rare: <http://lists.qt-project.org/pipermail/development/2016-February/024776.html>
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