remove obsolete ref modifier and callback keyword

[vala-lang.git] / tests / test-021.vala

using GLib;

class Maman.Foo {
        static int main (string[] args) {
                stdout.printf ("String + operator: 1");
                
                stdout.printf (" 2" + " 3");
                
                string s = " 4";
                s += " 5";
                
                stdout.printf ("%s", s);
        
                stdout.printf (" 6\n");

                return 0;
        }
}