Re: [boost] [inspect] exceptions (FW: [Boost-users] no exceptions)

25 Mar 2011

      Robert Kawulak:
...
You can eliminate the try/catch from the code. For example, instead of:
try {
        // do sth dangerous using cmpRead
      } catch(...) {
        cmpRead = 0;
        throw;
      }
write:
auto tmp = cmpRead;
      cmpRead = 0;
      // do sth dangerous using tmp
      cmpRead = tmp;
Hi, Robert,

Thanks for that.  I tried it.  The implementation is available
here -- http://webEbenezer.net/misc/rcb.hh .  It's one line shorter
than the version with the try/catch, but it adds 3 minor statements
to the non-error path.  On Fedora 14 with g++ 4.5.1 one of my
executables increased in size by over 500 bytes when using
the version without a try/catch.   On Windows 7 with MSVC++ 10
there wasn't any size difference in the executable.  I find the
try/catch version easier to understand though.

-- 
Brian Wood
Ebenezer Enterprises
http://webEbenezer.net