Use standard #ifndef/#define for avoiding multiple include.
1 /* -*- mode: C++; indent-tabs-mode: nil; -*-
3 * This file is a part of LEMON, a generic C++ optimization library.
5 * Copyright (C) 2003-2008
6 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
7 * (Egervary Research Group on Combinatorial Optimization, EGRES).
9 * Permission to use, modify and distribute this software is granted
10 * provided that this copyright notice appears in all copies. For
11 * precise terms see the accompanying LICENSE file.
13 * This software is provided "AS IS" with no warranty of any kind,
14 * express or implied, and with no claim as to its suitability for any
19 #ifndef LEMON_TEST_TEST_TOOLS_H
20 #define LEMON_TEST_TEST_TOOLS_H
24 ///\brief Some utilities to write test programs.
29 ///If \c rc is fail, writes an error message and exits.
31 ///If \c rc is fail, writes an error message and exits.
32 ///The error message contains the file name and the line number of the
33 ///source code in a standard from, which makes it possible to go there
34 ///using good source browsers like e.g. \c emacs.
37 ///\code check(0==1,"This is obviously false.");\endcode will
38 ///print something like this (and then exits).
39 ///\verbatim file_name.cc:123: error: This is obviously false. \endverbatim
40 #define check(rc, msg) \
42 std::cerr << __FILE__ ":" << __LINE__ << ": error: " << msg << std::endl; \