[boost] Re: [Q]: What is the recommended logging facility forboost: log4cpp or ??

From: Darryl Green (darryl.green_at_[hidden])
Date: 2004-10-25 21:07:09

Caleb Epstein <caleb.epstein <at> gmail.com> writes:

> 
> On Mon, 25 Oct 2004 14:17:11 +0100, Ben Hutchings
> <ben.hutchings <at> businesswebsoftware.com> wrote:
> > Caleb Epstein wrote:
> > > On Sat, 23 Oct 2004 07:10:48 +0000 (UTC), Darryl Green
> > > <darryl.green <at> unitab.com.au> wrote:
> > >
> > >
> > >>      char buf[101];
> > >>      va_list args;
> > >>      va_start(args, fmt);
> > >>      int n = vsnprintf (buf, 101, fmt, args));
> > >>      va_end(args);
> > >>      if (n < 0) return;

Well, it should probably log a logging failure ;-) at this point
rather than silently doing nothing, but you also snipped the next line:

m.get_stream().write(buf, n > 100 ? 100 : n);

Which does the/a right thing when the snprintf worked but truncated
the output. I am not suggesting this is tested, portable code.
There may be broken snprintf's and I wrote that code in the gmane web
interface - I have no idea if it even compiles. My intent was only to
illustrate that it isn't hard to modify/extend the logging library for
particular user requirements (not mine btw).

Regards
Darryl.