Re: LOG4CXX_DEBUG macro fails when used in a shared object or .so file gcc

On Oct 13, 2004, at 1:57 AM, Devender Marri wrote:

> Hi Curt,
> Thank you for the reply, atleast I now know that there is indeed a 
> problem, as I was trying different ways to solve the problem.
> currently I am using std::ostrstream to do the same and found that it 
> works.
>
> my new code looks as follows
>
> std::ostrstream outx;
> string str1 = "this is devender ";
> outx << str1;
> int i = 0;
> outx<< i++;
> logger->debug(outx.str());


The cost of constructing a std::ostringstream is non-trivial and 
calling logger->debug instead of using LOG4CXX_DEBUG loses the file 
name and line number (there is a bug report documentation to make that 
clear).  I'd recommend the following:

if (logger->isDebugEnabled()) {
   std::ostringstream outx;
   string str1 = "this is devender";
   outx << str1;
   int i = 0;
   outx << i++;
   LOG4CXX_DEBUG(logger, outx,str());
}