yat  0.14.5pre
yat_assert.h
1 #ifndef _theplu_yat_utility_yat_assert_
2 #define _theplu_yat_utility_yat_assert_
3 // $Id: yat_assert.h 3188 2014-03-25 10:24:29Z peter $
4 
5 /*
6  Copyright (C) 2007, 2008 Jari Häkkinen, Peter Johansson
7  Copyright (C) 2009, 2010, 2013, 2014 Peter Johansson
8 
9  This file is part of the yat library, http://dev.thep.lu.se/yat
10 
11  The yat library is free software; you can redistribute it and/or
12  modify it under the terms of the GNU General Public License as
13  published by the Free Software Foundation; either version 3 of the
14  License, or (at your option) any later version.
15 
16  The yat library is distributed in the hope that it will be useful,
17  but WITHOUT ANY WARRANTY; without even the implied warranty of
18  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19  General Public License for more details.
20 
21  You should have received a copy of the GNU General Public License
22  along with yat. If not, see <http://www.gnu.org/licenses/>.
23 */
24 
25 #include "Exception.h"
26 
27 #include <sstream>
28 #include <stdexcept>
29 #include <string>
30 
31 namespace theplu {
32 namespace yat {
33 namespace utility {
34 
36 
45  template<class X> inline void yat_assert(bool assertion, std::string msg)
46 #ifdef YAT_DEBUG
47  { if (!assertion) throw X(std::string("yat_assert:")+msg); }
48 #else
49  { }
50 #endif
51 
53 
54 }}}
55 
56 
57 #ifdef YAT_DEBUG
58 // Peter, this is a bit clumsy, but I wanna keep the stringstream
59 // invisible outside macro, or multiple calls to macro would result in
60 // multiple declaration of the stringstream. Also the macro is
61 // supposed to be called with a trailing ';', and that's why we need
62 // to end with something that allows that.
63 #define YAT_ASSERT(expr) \
64  if (!(expr)) { \
65  std::stringstream yat_msg_; \
66  yat_msg_ << __FILE__ << ":" << __LINE__ << " failed assertion '" \
67  << #expr << "'"; \
68  theplu::yat::utility::yat_assert<theplu::yat::utility::runtime_error>(expr, \
69  yat_msg_.str()); \
70  } \
71  else theplu::yat::utility::yat_assert<std::runtime_error>(expr, "")
72 #else
73 // This could be anything empty, but why not use the empty yat_assert
74 #define YAT_ASSERT(expr) theplu::yat::utility::yat_assert<std::runtime_error>(expr, "")
75 #endif
76  /*
77  */
78 #endif

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