At 8:12 PM +0100 2/14/08, Jean-Pierre Bergamin wrote:
Hello everyone
Is there a reason why boost::bind does not overload the logical operators || and &&? They definitively would come in more handy to build up complicated logical expressions than using the std::logical_and and std::logical_or function objects.
My guess is that since boost::bind could not replicate the behavior of && and ||, the authors decided not to provide them. The built in && will not evaluate the second argument if the first is false. Similarly, the built in || will not evalulate the second argument if the first is true. You can write if ( p != NULL && p->someField == 3 ) confident in the knowledge that "p->someField" will not be read from if p == NULL. -- -- Marshall Marshall Clow Idio Software <mailto:marshall@idio.com> It is by caffeine alone I set my mind in motion. It is by the beans of Java that thoughts acquire speed, the hands acquire shaking, the shaking becomes a warning. It is by caffeine alone I set my mind in motion.