What is the difference between these two options?
Option 1:
QList <double> arr_tmp = arr_one; //arr_one also QList <double>
Option 2:
QList <double> arr_tmp;
arr_tmp.append(arr_one);
Every 20 ms, I need to call one of these, and each time "arr_tmp" gets about 20,000 items from arr_one.
When I use option 1, my App (Windows 10 + QT 6.5 + MSVC2019) crashes very often, however option 2 works fine.
Very appreciated if any words!!