abt wrapper class and namespace std

[deepak_kr_mehta]

thanx sir for sending me reply of abt proxy class but sir i want to know why we use namespace std
1. wht function of std namespace we use?plz also explain wht is use of namespace in proper way?
2. wht is wrapper classes and wht integrator in c++ ?plz explain me with example?
thanx again sir
from
deepak kr.

[Valmont]

Please use proper english.