On 25/08/2020 02.22, Mathias Hasselmann wrote:
I'd really enjoy implementing list models without having to litter static casts all over the place. Well, but seems that chance got missed once again with qsizetype still being signed.
That's intentional. There are problems with unsigned index types, not least of which is they aren't practically useful anyway. Some consider it a mistake that size_t is unsigned, and indeed, ssize_t is starting to be retrofitted in some places (e.g. `container.ssize()`). If we ever get an STL2 it will likely also have signed index types.
Signed index types allow things like indexing-from-end and make tests for invalid indices far less painful. Seriously, which of these do you prefer?
if (s.find(ch) < 0) // option 1 if (s.find(ch) != std::string::npos) // option 2 -- Matthew _______________________________________________ Development mailing list Development@qt-project.org https://lists.qt-project.org/listinfo/development
