Hi Richard, Lars and Daniel, Thank You for the links. I shall go there and go on my learning.
Regards, -- Bien cordialement, Patrick CARDONA On 2020-06-01 11:13:15 +0200 Richard Frith-Macdonald <[email protected]> wrote: > > >> On 31 May 2020, at 20:52, Patrick Cardona via Discussion list for the >> GNUstep programming environment <[email protected]> wrote: > >> Hi All experienced Objective-C Dev > >> I begun this Beginner Guide about Objective C : > >> http://gnustep.made-it.com/BG-objc/ > >> But my beginning is not glorious... > >> pi@raspberrypi:~/CoursObjectiveC $ ls >> hello hello.m >> pi@raspberrypi:~/CoursObjectiveC $ gcc -lobjc hello.m -o hello >> hello.m: In function ‘main’: >> hello.m:39:2: warning: ‘Greeter’ may not respond to ‘+new’ >> myGreeter=[Greeter new]; >> ^~~~~~~~~ >> hello.m:39:2: warning: (Messages without a matching method signature >> hello.m:39:2: warning: will be assumed to return ‘id’ and accept >> hello.m:39:2: warning: ‘...’ as arguments.) >> hello.m:43:2: warning: no ‘-free’ method found >> [myGreeter free]; >> ^ >> pi@raspberrypi:~/CoursObjectiveC $ ./hello >> Erreur de segmentation > >> Is this Beginner's Guide up to date ? > > > It's old, but probably still OK. > You could also try the guide that comes with GNUstep-base; you should already > have it on your system, but can also find it online at > http://www.gnustep.org/resources/documentation/Developer/Base/ProgrammingManual/manual_1.html >
