test/test_tools.h
author Peter Kovacs <kpeter@inf.elte.hu>
Fri, 03 Apr 2009 18:59:15 +0200
changeset 608 6ac5d9ae1d3d
parent 209 765619b7cbb2
child 763 93cd93e82f9b
permissions -rw-r--r--
Support real types + numerical stability fix in NS (#254)

- Real types are supported by appropriate inicialization.
- A feature of the XTI spanning tree structure is removed to ensure
numerical stability (could cause problems using integer types).
The node potentials are updated always on the lower subtree,
in order to prevent overflow problems.
The former method isn't notably faster during to our tests.
     1 /* -*- mode: C++; indent-tabs-mode: nil; -*-
     2  *
     3  * This file is a part of LEMON, a generic C++ optimization library.
     4  *
     5  * Copyright (C) 2003-2009
     6  * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
     7  * (Egervary Research Group on Combinatorial Optimization, EGRES).
     8  *
     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.
    12  *
    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
    15  * purpose.
    16  *
    17  */
    18 
    19 #ifndef LEMON_TEST_TEST_TOOLS_H
    20 #define LEMON_TEST_TEST_TOOLS_H
    21 
    22 ///\ingroup misc
    23 ///\file
    24 ///\brief Some utilities to write test programs.
    25 
    26 #include <iostream>
    27 #include <stdlib.h>
    28 
    29 ///If \c rc is fail, writes an error message and exits.
    30 
    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.
    35 ///
    36 ///For example
    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) \
    41   if(!(rc)) { \
    42     std::cerr << __FILE__ ":" << __LINE__ << ": error: " << msg << std::endl; \
    43     abort(); \
    44   } else { } \
    45 
    46 #endif