Hi Alexandre, In Vala you can simply just check for str != "", this is enough.
Regards, Dmitry 16.01.2017, 21:28, "Alexandre Oliveira" <xinay...@airmail.cc>: > I tried this in my method, even replacing 'string' for 'string?', but I > still get the same message in my terminal. > > What is your suggestion to suppress these messages? > > On 16/01/2017 17:23, Guillaume Poirier-Morency wrote: >> You should test for nullity before addressing the string. >> >> return str == null || str.length == 0; >> >> If you expect the string to be potentially 'null', use the 'string?' >> type instead. >> >> 2017-01-16 14:09 GMT-05:00 Alexandre Oliveira <xinay...@airmail.cc >> <mailto:xinay...@airmail.cc>>: >> >> Hello! >> >> I've just heard about Vala and I've been messing around with it these >> past days. >> >> However, I came across a problem. I need to check if some strings aren't >> empty, and I realized there's no method in Vala that's equivalent to >> C#'s `string.IsNullOrEmpty(string)`. >> >> I tried setting up a static method to check if the given string is >> empty: >> ``` >> static bool is_empty(string str) { >> return str[0] == '\0' || str == null; >> } >> ``` >> >> However, running my code, I get the following message repeatedly in my >> terminal: ** (main.exe:2288): CRITICAL **: is_empty: assertion 'str != >> NULL' failed >> >> What am I doing wrong? >> >> Thanks! >> -- >> Alexandre Oliveira >> 167F D82F 514A E8D1 2E9E >> C62D 1B63 9D4A 7E9D DA9D >> _______________________________________________ >> vala-list mailing list >> vala-list@gnome.org <mailto:vala-list@gnome.org> >> https://mail.gnome.org/mailman/listinfo/vala-list >> <https://mail.gnome.org/mailman/listinfo/vala-list> >> >> -- >> Guillaume Poirier-Morency <guillaumepoiriermore...@gmail.com >> <mailto:guillaumepoiriermore...@gmail.com>> >> >> Étudiant au baccalauréat en Informatique à l'Université de Montréal >> Développeur d'application web >> >> *Mon blog:* arteymix.github.io <https://arteymix.github.io> >> *Mon projet de coopérative:* pittoresque.github.io >> <https://pittoresque.github.io> >> *Clé PGP:* B1AD6EA5 >> <https://pgp.mit.edu/pks/lookup?op=vindex&search=0x1CCFC3A2B1AD6EA5> > > -- > Alexandre Oliveira > 167F D82F 514A E8D1 2E9E > C62D 1B63 9D4A 7E9D DA9D > _______________________________________________ > vala-list mailing list > vala-list@gnome.org > https://mail.gnome.org/mailman/listinfo/vala-list _______________________________________________ vala-list mailing list vala-list@gnome.org https://mail.gnome.org/mailman/listinfo/vala-list
