Re: [Wing-007-technical] Making wing modules platform-independent ---- much tougher than I expected.

[Stein G. G. <gra...@pv...>]

Hi,

"Is there anybody has some thoughts on iostream, log system, string,
threads and file/directory?"

I think this should be the priority for these.
1. string
2. file/directory
3. iostream
4. log system
5. threads.

This is because I think first we will need a string, and to make a io
system that works with our string, we'll need file access.

But there are some fileIO and string implementation on svn (not
cross-platform). Is it those file we need to improve and make them
cross-platform?

I'll like to start working on some of these problems, and help get the
framework cross-platform. But I need to know where to begin and what it
should support.

Are we going to replace iostream, fstream etc?

-steini 

>  
On Tue, 2009-04-07 at 11:43 +0800, 任麒麟 wrote:
> Hi everyone, 
>  
> Recently I was working on platform-independent code base. I uploaded
> some pages and codes. 
>  
> The pages can be found at (You may need to force refresh the page):
> http://wing-007.sourceforge.net/DevGuide/coding_standard.html
>  
> The code can be found at the svn address:
> https://wing-007.svn.sourceforge.net/svnroot/wing-007/sandbox/cross_platform_test
>  
>  
> Now I found that the task is much much tougher than I originally
> expected. The major reason is that we need to conform to C and C++
> standard, while current standards are not enough for us. We need
> functionalities that are not defined in standard: 
>  
>     1. We need to handle endianness. However iostream is designed
> majorly for texts, not binary streams. It doesn't handle endianness.
> That means if we want to support endianness, we need to provide a
> stream system other than the standard one.
>     2. Extending the std::stream_buf requires a lot of work. 
>     3. There is no log system in standard.
>     4. Many functions such as char attributes get functions (toupper,
> tolower, isdigit, isprint, etc.) are defined in C99, while we cannot
> always expect the compiler fully support C99. That means we need to
> implement those functions for C89 compilers.
>     5. There is no thread, dll and process functions in standard.
>     6. A lot of work are needed in order to support cross-platform
> file/directory/disk operations. eg. There is no standard for getting
> the current directory.
>  
> Is there anybody has some thoughts on iostream, log system, string,
> threads and file/directory?
>  
> ------------------------------------------------------------------------------
> This SF.net email is sponsored by:
> High Quality Requirements in a Collaborative Environment.
> Download a free trial of Rational Requirements Composer Now!
> http://p.sf.net/sfu/www-ibm-com
> _______________________________________________ Wing-007-technical mailing list Win...@li... https://lists.sourceforge.net/lists/listinfo/wing-007-technical