[Development] Question about QCoreApplicationData::*_libpaths

[Marc Mutz]

I missed one:

On Monday 18 January 2016 23:43:37 Marc Mutz wrote:
>     #include <QVector>
>     #include <string>
> 
>     int main() {
> 
>         QVector<QByteArray> l;
>         int oldC = l.capacity();
>         for (int i = 0; i < 10000000; ++i) {
>             char buf[std::numeric_limits<int>::digits + 1];
>             sprintf(buf, "%d", i);
>             l.push_back(buf);
>             int newC = l.capacity();
>             if (newC != oldC)
>                 qDebug("%d", newC);
>             oldC = newC;
>         }
> 
>     }
> 
>     $ time ./test
>     <snip>
>     real    0m1.769s
>     user    0m1.572s
>     sys     0m0.192s

Same with std::vector<QByteArray>:

real    0m1.776s
user    0m1.616s
sys     0m0.156s
 
> best of three runs, core i7-2720QM, GCC 5.3

Ditto.

So... is realloc actually the optimisation everyone (incl. me) expected it to 
be?

-- 
Marc Mutz <marc.mutz at kdab.com> | Senior Software Engineer
KDAB (Deutschland) GmbH & Co.KG, a KDAB Group Company
Tel: +49-30-521325470
KDAB - The Qt Experts