Re: [boost] type_traits: remove_pointer?

From: Howard Hinnant (hinnant_at_[hidden])
Date: 2000-12-21 13:48:43

FWIW, remove_pointer could handily be used to implement is_pointer:

template <class T> struct is_pointer
        {static const bool value = !is_same<T, typename 
remove_pointer<T>::type>::value;};

(assuming of course that remove_pointer removed pointers and top-level 
cv-qualified pointers, else returned the original type)

template <class T> struct remove_pointer                   {typedef T 
type;};
template <class T> struct remove_pointer<T*>               {typedef T 
type;};
template <class T> struct remove_pointer<T*const>          {typedef T 
type;};
template <class T> struct remove_pointer<T*volatile>       {typedef T 
type;};
template <class T> struct remove_pointer<T*const volatile> {typedef T 
type;};

-Howard

David Abrahams wrote on 12/21/2000 11:05 AM
>I notice there is a remove_reference<T> but no remove_pointer<T> in
>type_traits. Oversight? Rationale?