summaryrefslogtreecommitdiff
path: root/zen/assert_static.h
blob: 5a2dc4a6bee92afa35b1a29e7eed4d43b48717c5 (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
// **************************************************************************
// * This file is part of the zenXML project. It is distributed under 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.       *
// * Copyright (C) 2011 ZenJu (zhnmju123 AT gmx.de)                         *
// **************************************************************************

#ifndef ASSERTSTATIC_H_INCLUDED
#define ASSERTSTATIC_H_INCLUDED

/*
//compile time assert based on Loki (http://loki-lib.sourceforge.net)

#ifdef NDEBUG

#define assert_static(x)	//((void)0) -> leads to error when seen in namespace scope!

#else // debugging enabled
namespace static_check_impl
{
template<int>
struct CompileTimeError;

template<>
struct CompileTimeError<true> {};
}

#define LOKI_CONCAT(X, Y) LOKI_CONCAT_SUB(X, Y)
#define LOKI_CONCAT_SUB(X, Y) X ## Y

#define assert_static(expr)  \
    enum { LOKI_CONCAT(loki_enum_dummy_value, __LINE__) = sizeof(StaticCheckImpl::CompileTimeError<static_cast<bool>(expr) >) }

// #define assert_static(expr) \
// { Loki::CompileTimeError<((expr) != 0)> Static_Assert_Has_Failed; (void)Static_Assert_Has_Failed; }

#endif
*/

//C++11: at least get rid of this pointless string literal requirement
#define assert_static(X)  \
    static_assert(X, "Static assert has failed!");

#endif //ASSERTSTATIC_H_INCLUDED
bgstack15