David, Thank you. On 2/9/07, David Klein wrote:

Meryl Silverburgh wrote:

...

Hi,

I have code like this which sort a Rect, which compare value of getY(), like this:

vector rl;

::sort(rl.begin(), rl.end(), bind(less < int >(), bind(&Rect::getY, _1), bind(&Rect::getY, _2)));

how can I change it so that it compares with the 'y' attribute? like, rect1.y < rect2.y?

Thank you. _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users

Hi Meryl,

well, just replace &Rect::getY with &Rect::y :)

sort( rl.begin(), rl.end(), bind( less<int>(), bind(&Rect::y, _1), bind(&Rect::y, _2) ) );

-- HTH dave

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me22 wrote:

On 2/9/07, Meryl Silverburgh wrote:

...

how can I change it so that it compares with the 'y' attribute? like, rect1.y < rect2.y?

As of Boost 1.33: sort(rl.begin(), rl.end(), bind(&Rect::y, _1) < bind(&Rect::y, _2) );

http://boost.org/libs/bind/bind.html#operators

~ Scott McMurray _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users

Oh, very cool. Thanks for the info Scott. -- Regards, dave