如何在Omnet ++项目中使用柠檬图库?

时间:2015-07-20 22:33:07

标签: omnet++ lemon-graph-library

我正在尝试在omnet ++中设计网络(随机图),我想使用Lemon Graph Library解析网络节点。我已经安装了库,如果我尝试使用命令行g++ -o file file.cpp/cc -lemon在任何图形中编译任何带有节点和边的普通c ++文件,它就可以正常工作。但是,当我尝试使用我的omnet ++项目之一(现在没有任何内容)时,代码如下所示

#include <omnetpp.h>
#include <iostream>
#include <lemon/list_graph.h>
using namespace lemon;
using namespace std;

class Facility : public cSimpleModule
{
    protected:
    virtual void initialize();
    virtual void handleMessage(cMessage *msg);

};

Define_Module(Facility);

void Facility :: initialize(){


}

void Facility :: handleMessage(cMessage *msg){

}`

include标题位于尖括号中(不要与双引号混淆)。因此,当我构建代码时,我会收到以下错误:

    Description Resource    Path    Location    Type
‘class cEnvir’ has no member named ‘push_back’  PSUC        line 686, external location: /usr/local/include/lemon/bits/graph_extender.h C/C++ Problem
‘class cEnvir’ has no member named ‘push_back’  PSUC        line 687, external location: /usr/local/include/lemon/bits/graph_extender.h C/C++ Problem
‘test’ does not name a type test.cc /ztest  line 9  C/C++ Problem
invalid use of qualified-name ‘cSimulation::getActiveEnvir’ PSUC        line 69, external location: /home/vijay/omnetpp-4.6/include/cenvir.h    C/C++ Problem
make: *** [out/gcc-debug//psuc.o] Error 1   PSUC            C/C++ Problem
make: *** [out/gcc-debug//test.o] Error 1   ztest           C/C++ Problem
no matching function for call to ‘lemon::AlterationNotifier<lemon::GraphExtender<lemon::ListGraphBase>, lemon::ListGraphBase::Arc>::add(cEnvir&)’   PSUC        line 688, external location: /usr/local/include/lemon/bits/graph_extender.h C/C++ Problem

为什么Omnet ++代码不与Lemon图库兼容?

1 个答案:

答案 0 :(得分:2)

OMNeT ++在cEnvir.h中包含ev的宏定义(包含在omnetpp.h中)

#define ev  (*cSimulation::getActiveEnvir())

由于您在omnetpp.h之前加入了graph_extender.h,因此会在库的头文件中展开此宏,这与其在

中用作变量名称相冲突
ev.push_back(Parent::direct(edge, true));

一个简单的解决方案是在graph_extender.h之前加入omnetpp.h,因此在读取graph_extender.h时尚未定义宏。如果这是不可能的,那么您可能会有一些运气,在之前手动取消定义宏(并可能在之后恢复定义),如下所示。

#pragma push_macro("ev")
#undef ev
#include "graph_extender.h"
#pragma pop_macro("ev")