From:	eds AT gravi DOT physik DOT uni-jena DOT de (E. Schmidt)
Newsgroups:	comp.os.msdos.djgpp
Subject:	Simple beginner questions
Date:	3 Dec 1997 19:32:12 GMT
Organization:	Friedrich-Schiller-University Jena, Germany
Lines:	29
Message-ID:	<664c3s$2rq$1@fsuj19.rz.uni-jena.de>
NNTP-Posting-Host:	hpxs2.tpi.uni-jena.de
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Hallo World!

1. How to define user function with variable
   number of arguments? I simply want(ed) to 
   define my error handler printing some formatted message
   and making some other things like closing files...

2. How to close the file, if I don't know if it is opened or closed?
   Only file variable FILE * fp; is achivable.

3. Is it important in C to free the memory in the inverse
   allocation order ?
     p1=malloc(100);
     p2=malloc(200);
     ...
     free(p2);
     free(p1);
   What happens with pieces of memory which are set free in "wrong" order?
   For above example 
     free(p1);
     p1=malloc(50);
   Would these 50 bytes be allocated in the memory of previous malloc(100) ? 

Thanks a lot

Eduard 
   
   

- Raw text -