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Redirecting cerr

Hi,
how can one redirect std::cerr into a file? Specifically, if I have an
ofstream object, is there something I can do to make "cerr << ..." calls
write into that particular ofstream object?

Thx,
Agoston
Jul 22 '05 #1
2 6018
Agoston Bejo wrote:
how can one redirect std::cerr into a file?
I have answered this question loads of times in the past: you can
replace 'std::cerr's stream buffer. However, since 'std::cerr' is
possibly accessed after exiting 'main()', you probably need to
restore the original stream buffer or allocate your stream buffer
on the heap.

Specifically, if I have an ofstream object, is there something I can do to make "cerr << ..." calls write into that particular ofstream object?


| std::ofstream out(...);
| std::streambuf orig = std::cerr.rdbuf (out.rdbuf());
| ... // use redirected cerr
| std::cerr.rdbuf (orig);
--
<mailto:di***** ******@yahoo.co m> <http://www.dietmar-kuehl.de/>
<http://www.contendix.c om> - Software Development & Consulting

Jul 22 '05 #2

"Agoston Bejo" <gu***@freemail .hu> wrote in message news:cr******** **@news.caesar. elte.hu...
Hi,
how can one redirect std::cerr into a file? Specifically, if I have an
ofstream object, is there something I can do to make "cerr << ..." calls
write into that particular ofstream object?

Thx,
Agoston


Look at
* http://groups-beta.google.com/group/...4204134e9956a0
* http://alexvn.freeservers.com/s1/download.html (Redirecting cout/cerr <--> file )
--
Alex Vinokur
email: alex DOT vinokur AT gmail DOT com
http://mathforum.org/library/view/10978.html
http://sourceforge.net/users/alexvn


Jul 22 '05 #3

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