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

[<asi...@ya...>]

Qilin and Stein,

Any items that I can help with?

Thanks
Asim




On Apr 7, 2009, at 8:03 AM, 任麒麟 <ren...@gm...> wrote:

Hi Stein,

Thank you for the comments. Yes we are going to replace fstream with our own binary stream class. For text streams, we will continue to use std::iostream.
 
I did a search on google, and I saw many people are working on creating their iostream, in order to support endianness and a stable binary format. I hope the C++ standard committee will improve binary iostream in their next version of C++ standard. :)
 
Here is an example:
http://groups.google.com/group/comp.lang.c++.moderated/msg/958518518f57dda1?pli=1
 
I also agree with your priority on modules. Strings in wing are defined at:
 
WingSDK/Include/Framework/StringUtility.h  // basic C functions. Unify the ascii string functions and unicode functions to avoid finger ache.
WingSDK/Include/Framework/AsciiString.h
WingSDK/Include/Framework/UnicodeString.h
WingSDK/Include/Framework/String.h
Source/Framework/String.cpp
Source/Framework/String.inl
Source/Framework/StringUtility.cpp
Source/Framework/StringUtility.inl
 
Kmp fast string search algorithm is implemented at:
 
Source/Internal/Framework/KmpStringSearch.h
Source/Framework/KmpStringSearch.cpp
 
I provided some functions to unify the ascii string and unicode string operations. Moving them to sandbox in a platform-independetn form may takes time.
 
The reason of using our own string instead of std::string is to avoid data loss between different modules that are compiled with different version of stl, and avoid crash due to releasing the memory allocated in another module.
 
You can compile the sandbox code by: Build/gnu/Makefile
 
If you want to add files to project, you can modify Build/framework.lua or Build/framework_usage.lua, then execute Build/GenerateProjects.sh to generate the make file. In order to run that script, you may need to download the external library for linux at: https://sourceforge.net/project/showfiles.php?group_id=160056
 
Qilin. 
2009/4/7 Stein Gunnar Grastveit <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
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