On Wed, 10 Mar 2004 22:40:44 +1100 Lucas King <[EMAIL PROTECTED]> wrote:
> hello, > > a somewhat technical question - i am trying to associate a file > descriptor with a file pointer using the C++ fstream class. this > function is an extension to the C++ library. > > in the documentation that i downloaded from the WEB > (http://nf.apac.edu.au/facilities/sc/compaq_mirror3/progtool/cplus/basic_fstream_3c__std.htm) That doco is for the RogueWave library, which is not necessarily in the standard. In fact I'm pretty sure it's not, because file descriptors are a unix thing not a language (c++) thing > it shows a constructor, explicit basic_fstream(fd). i take this to mean > that it can be done. however, it does not provide an example on how to I've been wanting to do a similar thing, and the thing to use is a gnu extension. Beginning with g++ 3.1, you should use a class __gnu_cxx::stdio_filebuf which is defined in the include file <ext/stdio_filebuf.h> (aka /usr/include/g++/ext/stdio_filebuf.h) But I'm right in the middle of doing this and haven't got anything working at the moment. The net is a bit short on examples! Matt PS. I want this so I can popen nicely from within c++. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
