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From: h235_033@ccvax.ucd.ie
Newsgroups: comp.sys.amiga.misc
Subject: Re: lattice C NOVICE question
Message-ID: <1991Mar21.114116.48031@ccvax.ucd.ie>
Date: 21 Mar 91 11:41:16 GMT
References: <732@elctr.UUCP>
Organization: University College Dublin
Lines: 57


In article <732@elctr.UUCP>, dsn@elctr.UUCP (Dan Soeren Nielsen) writes:
> 
> Hi there, can someone help me with some beginners problems.
> 
>  I'm quit new to programming in C, but after a short course at my company 
> (using Turbo C on PC) I thought I was ready to start with some basic 
> examples on a Amiga (using Lattice Ver 5.0). 
>  I started out by typing in the first example in "Amiga bogen", the danish
> version of "Programmer's guide to the Amiga" by Robert A.Peck. You will 
> see the program below:
> 
> #include "libraries/dosextens.h"
> extern struct FileHandle *Open();
> 
> main()
> {
>       struct FileHandle *dos_fh;
>       if (dos_fh = Open("*",MODE_OLDFILE))
>       {
>             fprintf(dos_fh,"%ls","Hello there!\n");
>             Close(dos_fh);
> 
>       }
>       else
>       printf("Error!!\n");
> 
> }
> 
>  I'v checked it for typing errors several times, but I still end up at 
> the Guru. It seems that the "fprinf" can't be used together with "Open" 
> and "Write" should be used instead.
>  Is this an error in the book or is the problem due to incompatibility 
> with the Lattice compiler?
>  
>  By the way; Where do I find a description of the functions in dosextens
> 
> 
> I'll be greatfull if somebody could help me out.
> 
> Klaus
> ---
> If this posting contains opinions, they are my own and not that of my
> employer.
> 
> 
> E-mail address : kv@elctr.dk


	Hi, this seems really obvious, but to my knowledge fprintf takes a file
pointer as its first arg, not a struct FileHandle *. In general when messing
with files on the Amiga, I just use fopen, fclose, fread, fwrite, fcreate,etc, 
or if running under UNIX, then open, close, read, write, creat, etc.

	All these fctns are detailed in K&R's book on ANSI C.

			it->Nuttchen->Steven.