Re: Objective-C Beginner's Guide

[Patrick Cardona]

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 
<richard@frithmacdonald.me.uk> wrote:

> 
> 
>> On 31 May 2020, at 20:52, Patrick Cardona via Discussion list for the 
>> GNUstep programming environment <discuss-gnustep@gnu.org> 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
>