blob: dd820db87dd08f3992b44918ccb67124fee65ac7 (
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
48
49
50
|
// file : cutl/meta/polymorphic-p.hxx
// copyright : Copyright (c) 2009-2013 Code Synthesis Tools CC
// license : MIT; see accompanying LICENSE file
#ifndef CUTL_META_POLYMORPHIC_HXX
#define CUTL_META_POLYMORPHIC_HXX
#include <cutl/meta/class-p.hxx>
#include <cutl/meta/remove-cv.hxx>
namespace cutl
{
namespace meta
{
template <typename CVX>
struct polymorphic_p
{
typedef typename remove_cv<CVX>::r X;
template <typename Y, bool C>
struct impl
{
static const bool r = false;
};
template <typename Y>
struct impl<Y, true>
{
struct t1: Y
{
t1 ();
};
struct t2: Y
{
t2 ();
virtual
~t2 () throw ();
};
static const bool r = sizeof (t1) == sizeof (t2);
};
static const bool r = impl<X, class_p<X>::r>::r;
};
}
}
#endif // CUTL_META_POLYMORPHIC_HXX
|