Standard C++ Library Class Reference

typedef typename unary_function<T,T>::argument_type argument_type;

typedef typename unary_function<T,T>::result_type result_type;

T operator() (const T&) const;

};

Warning

If your compiler does not support default template parameters, then you need to always supply the Allocator template

argument. For instance, you will need to write :

vector<int, allocator>

instead of :

vector<int>