[Boost-users] ptr_vector sort usage - partially solved

archie14 writes:

I can't figure out how to use "sort" method in ptr_vector with the function object. Operator < should be defined, but for various reasons I cant define

it

in the class A, and I have to do the comparison between the A values using some other values.

... I "solved" the problem by declaring static comparison method and static member variable to use inside comparison method. Result works, but it is ugly. Question remains - how to define a function object without falling to the static member usage?