On Fri, Mar 25, 2011 at 6:58 PM, Gruenke, Matt <mgruenke@tycoint.com> wrote:
On Fri 3/25/2011 8:51 PM, Emil Dotchevski wrote:
First, let's get on the same page about the nature of the cost of BOOST_THROW_EXCEPTION:
- It adds ~500 lines of C++ code, increasing your compile times. Compare this to something as basic as boost/config.hpp, which preprocesses to ~47000 lines on my system.
What does that have to do with anything?
This has to do with effect of BOOST_THROW_EXCEPTION on the time it takes to compile your program. I count that as cost.
Second, consider that this is only the default behavior. All this functionality disappears if you #define BOOST_EXCEPTION_DISABLE.
Huh? But that changes the behavior of the code, breaking it in places that depend on exceptions.
You seem to be confusing BOOST_NO_EXCEPTIONS with BOOST_EXCEPTION_DISABLE. Both change the behavior of BOOST_THROW_EXCEPTION: - BOOST_NO_EXCEPTIONS makes it call a user-defined function instead of throwing - BOOST_EXCEPTION_DISABLE turns it into a simple throw (e.g. no cost) except if BOOST_NO_EXCEPTIONS is defined, which takes precedence. Emil Dotchevski Reverge Studios, Inc. http://www.revergestudios.com/reblog/index.php?n=ReCode