test/test_tools.h
author Peter Kovacs <kpeter@inf.elte.hu>
Thu, 12 Nov 2009 23:26:13 +0100
changeset 806 fa6f37d7a25b
parent 440 88ed40ad0d4f
child 877 141f9c0db4a3
permissions -rw-r--r--
Entirely rework CapacityScaling (#180)

- Use the new interface similarly to NetworkSimplex.
- Rework the implementation using an efficient internal structure
for handling the residual network. This improvement made the
code much faster (up to 2-5 times faster on large graphs).
- Handle GEQ supply type (LEQ is not supported).
- Handle negative costs for arcs of finite capacity.
(Note that this algorithm cannot handle arcs of negative cost
and infinite upper bound, thus it returns UNBOUNDED if such
an arc exists.)
- Extend the documentation.
     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   {                                                                     \
    42     if(!(rc)) {                                                         \
    43       std::cerr << __FILE__ ":" << __LINE__ << ": error: "              \
    44                 << msg << std::endl;                                    \
    45       abort();                                                          \
    46     } else { }                                                          \
    47   }                                                                     \
    48     
    49 
    50 #endif