[Boost-users] question of program_options : validator function

hello boosters, An old boost library that i was using, provided a validator function (in the value_sematic.hpp file) that could be used for creating user defined parsers and it was handy The signature was something like : void validator::operator() (any& v, const std::vectorstd::string& xs); I had a working code that used it and when i tried to recompile my old code with a new boost release it did not compile. I then realized that the validator function is no longer there. Can someone please let me know if this has been substituted by something else (what?) or what i would have to use now in such cases. Thanks in advance. --------------------------------------------------------------------------------------------------------- Warm Regards, Suresh.T ---------------------------------------------------------------------------------------------------------