blob: 25f810a1635782b1b3e2d67c07f169eb7a611dd5 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
// (C) Copyright Dave Abrahams, Steve Cleary, Beman Dawes,
// Howard Hinnant and John Maddock 2000.
// (C) Copyright Mat Marcus, Jesse Jones and Adobe Systems Inc 2001
// Use, modification and distribution are subject to the Boost Software License,
// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt).
//
// See http://www.boost.org/libs/type_traits for most recent version including documentation.
// Fixed is_pointer, is_reference, is_const, is_volatile, is_same,
// is_member_pointer based on the Simulated Partial Specialization work
// of Mat Marcus and Jesse Jones. See http://opensource.adobe.com or
// http://groups.yahoo.com/group/boost/message/5441
// Some workarounds in here use ideas suggested from "Generic<Programming>:
// Mappings between Types and Values"
// by Andrei Alexandrescu (see http://www.cuj.com/experts/1810/alexandr.html).
#ifndef BOOST_TT_IS_POINTER_HPP_INCLUDED
#define BOOST_TT_IS_POINTER_HPP_INCLUDED
#include <boost/type_traits/integral_constant.hpp>
namespace boost {
#if defined( __CODEGEARC__ )
template <class T> struct is_pointer : public integral_constant<bool, __is_pointer(T)>{};
#else
template <class T> struct is_pointer : public false_type{};
template <class T> struct is_pointer<T*> : public true_type{};
template <class T> struct is_pointer<T*const> : public true_type{};
template <class T> struct is_pointer<T*const volatile> : public true_type{};
template <class T> struct is_pointer<T*volatile> : public true_type{};
#ifdef BOOST_MSVC
template <class T> struct is_pointer<T const> : public is_pointer<T>{};
template <class T> struct is_pointer<T const volatile> : public is_pointer<T>{};
template <class T> struct is_pointer<T volatile> : public is_pointer<T>{};
#endif
#endif
} // namespace boost
#endif // BOOST_TT_IS_POINTER_HPP_INCLUDED
|
