Path: chuka.playstation.co.uk!news
From: sosman@terratron.com (Steven Osman)
Newsgroups: scea.yaroze.freetalk
Subject: Re: Net Yaroze C++ Examples
Date: Fri, 28 May 1999 22:25:00 GMT
Organization: PlayStation Net Yaroze (SCEE)
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On Fri, 28 May 1999 19:43:57 GMT, daniel@reichardt.ch (Daniel
Hartmeier) wrote:

>On Fri, 28 May 1999 17:19:10 GMT, sosman@terratron.com (Steven Osman)
>wrote:
>
>> If you have CodeWarrior, you can find all the fixes necessary IN your
>> codewarrior installation!  Check in your codewarrior folder for a
>> folder called "unsupported"
>
>Unfortunately, you still need to tweak the headers and startup code a
>little. There is, for instance, a function called delete() in libps.h,
>and delete is a reserved word under C++. Dennis Payne already mentioned
>Chris Blackwell's page with further details.

There is a readme file in that folder.

Here is an excerpt from that file (it is called 
"C++Support Readme.txt")

(begin excerpt)

Modifying LIBPS.H to compile under C++
-----------------------------

There are several problems presented to people who wish to use the 
current Yaroze header in a C++ environment. It becomes somewhat
obvious 
after cursory examination of LIBPS.H that the authors of the library 
have never used C++. Fortunately you can remedy this situation with a 
few minor fixes to the header. The problems I have run in to thus far 
are: 
1.The functions are not typed as extern "C" 
2.A function named "delete" exists in the header 
3.Some of the function prototypes do not match their actual expected 
parameters 
I'd like to thank Nick Porcino for his suggestion on how to work
around 
the problem with the delete() function. 

Problem #1 - The functions are not typed as extern "C"

This is easily solved by adding this line just before the first
function 
is declared. I put mine in just after the "prototypes" comment. 

#if
defined(_LANGUAGE_C_PLUS_PLUS)||defined(__cplusplus)||defined(c_plusplus)
extern "C" {
#endif

Now add this line at the end of the file, just before the comment "End

on file." 

#if
defined(_LANGUAGE_C_PLUS_PLUS)||defined(__cplusplus)||defined(c_plusplus)
}
#endif



Problem #2 - A function named "delete" exists in the header

This is a bit more difficult to deal with. Nicks suggestions is as 
follows:
Step 1: Remove the line "extern int delete(char *);" from the header,
as 
we'll be putting the line elsewhere in the file.
Step 2: Add the following line into the file. I put mine at the very 
bottom of the function declarations so I didn't loose it. 

#if
defined(_LANGUAGE_C_PLUS_PLUS)||defined(__cplusplus)||defined(c_plusplus)
int deletefile(char* theFile);
#else
extern int delete(char *);
#endif

Step 3: Now you'll need to create a file with the following contents.
I 
called mine "delete.c" 

#include <libps.h>

int deletefile(char* theFile)
{
	return delete(theFile);
}

Step 4: Add this file to whatever C++ project you are using. In 
Metrowerks, I have created a new stationary which creates a C++ Yaroze

project and includes this file automatically. Be sure that if you are 
using this technique that C files are not getting compiled with a C++ 
compiler, otherwise this file will not compile. 
You can find a copy of this file here. 



Problem #3 - Some of the function prototypes do not match their actual

expected parameters

I have run into two of these functions which don't match their 
declarations, but there are still many functions I have not tried 
calling yet. If you find any more, please e-mail me so I can fix them
in 
my header and add then into my list. 
Function: FntPrint()
What it ships as: int FntPrint();
This is clearly wrong, since FntPrint takes a variable length
parameter 
list. Strangely enough, the documentation lists the parameters as (int

id, format, ...). This is strange because none of the sample code uses

the first int parameter. In fact, I'm not even sure what streams are 
used for, or why you would want to use them. All of the sample code
for 
printing fonts that I have seen, uses -1 wherever the stream id is 
requested (like in FntFlush.) Hmmm. Anyone with more information on
font 
streams, please e-mail me. Sony?
What it should be: int FntPrint(char* format,...)
Actually, this doesn't always work. I don't know why. I'll post as
soon 
as I do!
Function: KanjiFntPrint()
What is ships as: int KanjiFntPrint();
What it should be:int KanjiFntPrint(char* format,...);
See FntPrint() above to see why.