Creating a debug stream

[ciccio]

Hi,

I would like to write debug output to my screen but I don't want to use
std::cout or std::cerr but rather a thing called debug which would write
to std:cerr. Also I would like to have that each new line would start with
a certain starting character.

An example would then be

debug << "Debug line 1\nDebug line 2" << std::endl;

which should result in the following output to stderr

(D) Debug line 1
(D) Debug line 2

Is this possible?

 

[Zeppe]

Dear ciccio,

Hi,

I would like to write debug output to my screen but I don't want to use
std::cout or std::cerr but rather a thing called debug which would write
to std:cerr. Also I would like to have that each new line would start
with a certain starting character.

You can google "c++ log library". A good one seems to be pantheios
(http://pantheios.sourceforge.net/) but yo may just require something
simpler.

Best wishes,

Zeppe

 

[James Kanze]

I would like to write debug output to my screen but I don't
want to use std::cout or std::cerr but rather a thing called
debug which would write to std:cerr. Also I would like to have
that each new line would start with a certain starting
character.

An example would then be

debug << "Debug line 1\nDebug line 2" << std::endl;

which should result in the following output to stderr

(D) Debug line 1
(D) Debug line 2

Is this possible?

Sure. This is a standard application of a filtering streambuf.
See http://kanze.james.neuf.fr/articles/fltrsbf1.html and
http://kanze.james.neuf.fr/articles/fltrsbf2.html.