Robert Jones
On Wed, Feb 11, 2009 at 12:21 PM, Peter Barker <mailto:newbarker@gmail.comnewbarker@gmail.com> wrote:
Sorry for the noise. Just figured std::find_if() should do it.
Hi Peter
Although you've quickly figured out that the functionality you need is already there, I do agree that the use of find_if() to express until() semantics is not immediately obvious. I think it is proabably a little "Aha" moment for many of us. In a similar vein I often find myself writing this functionality
bool exists( begin, end, value ) { return find(begin, end, value) != end; }
and
bool exists_if( begin, end, predicate) { return find_if(begin, end, predicate) != end; }
So maybe there is a place for some very thin wrappers.
You might look in the sandbox, specifically in boost/algorithms/all.hpp. What you call "exists" is called "any" there - which follows the proposal for TR2. -- -- 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.