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- Path: sparky!uunet!psinntp!ncrlnk!torynews!tdat!tos28.teradata.com!cyk
- From: cyk@tos28.teradata.com
- Newsgroups: comp.sys.next.programmer
- Subject: NeXT Concepts.
- Keywords: Objetive-C, super, NeXT Window Server, MACH.
- Message-ID: <900@tdat.teradata.COM>
- Date: 14 Aug 92 20:50:21 GMT
- Sender: news@tdat.teradata.COM
- Reply-To: cyk@tos28.teradata.com ()
- Distribution: usa
- Organization: ATT/NCR Teradata Business Unit
- Lines: 51
- Originator: cyk@tos28
-
-
- Hi Guys,
-
- I came accross a couple of questions while reading the
- NeXT Concept document. I would appreciate if any one can
- give me some help. My questions are listed in the following:
-
- 1] Can a client of a NeXT Step window server be running
- on a remote host? If this is possible, under which
- document is this capability documented?
-
- 2] Does NeXT Step take advantage of MACH's threading,
- virtual memory management and messaging facilities?
-
- Is there any documentation on how application programs
- can benefit from the MACH facilities?
-
- 3] In Concepts, there is an example, illustrating the use
- of SUPER in Objective-C, in the following way:
-
- In B.h:
-
- class B: A {
- .
- .
- }
-
- In B.m:
-
- + new
- {
- B *bInstance;
-
- bInstance = [super new];
- .
- .
- return bInstance;
- }
-
- The semantics illustrated above seems to imply that
- bInstance will be pointing an instance of A since
- "super" causes the invokataion of A's new.
-
- Will class object B return a structure, which properly
- represents the newly created instance of B, if B has
- additional instance variables other than A's?
-
- Thanks in advance for your help.
-
-
- ----- Chi Ku
-