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Re: [avr-libc-dev] adding wrapper functions for new and, delete operator
From: |
Bradley Jarvis |
Subject: |
Re: [avr-libc-dev] adding wrapper functions for new and, delete operators |
Date: |
Fri, 11 Feb 2011 16:49:25 +1100 |
User-agent: |
Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.13) Gecko/20110114 Lightning/1.0b2 Thunderbird/3.1.7 |
> I've got only two concerns about that:
>
> . This your email will get lost in outer space soon; don't miss to
> file a patch request as soon as the discussion here settled. Please
> don't forget to patch the documentation (I think, at least the FAQ
> contains some remarks about the state of C++, so that should be
> updated).
I will have a look at making a patch to add new and delete support
> . Where should those workarounds go to? I'm not a C++ expert, but I
> think as new and delete are operators in C++, no particular header
> file is needed for them. So, we could either add them to <stdlib.h>
> (which declares malloc() and friends for the C language), wrapped in
> #if defined __cplusplus brackets, or add a separate header file,
> like <compat/c++.h>, or something like that.
>
I have had a look at gcc for the i686 and new and delete functions
appear to be located in the library libstdc++ . There is an additional
include directory called 'g++-v4' as well which contains the c++ header
files and where the file 'new' is located which contains the declaration
for new and delete (ie #include <new> is used to be able to use new and
delete).
I have noticed that the i686 gcc is compiled with the extra option
--with-gxx-include-dir=/usr/lib/gcc/i686-pc-linux-gnu/4.4.4/include/g++-v4
which adds the extra directory for c++ headers in the include search path.
So I can look at adding the extra library libstdc++ for the code and the
extra header file new. I can either look at adding the extra
directory(g++-v4 which is located in the include directory) for c++
header files or simply add it in with the other c header files. The c++
header files appear to be missing the .h. I would avoid using a header
the header compat/c++.h since that would require the programmer to use a
#ifdef to switch header files includes if the code is used on different
platforms. I include the new and delete operators from #include <string>
which includes <new>, so I will add the string header too
- Re: [avr-libc-dev] adding wrapper functions for new and, delete operators,
Bradley Jarvis <=