why destructor function called twice

From:
"David" <clamayi@gmail.com>
Newsgroups:
comp.lang.c++
Date:
18 Mar 2007 20:38:11 -0700
Message-ID:
<1174275491.807198.114790@l75g2000hse.googlegroups.com>
Hi all,
something wrong with my code, it seems that the destructor function
has been called twice. I don't know why.here is my codes
Fixture.h
#ifndef _FIXTURE_H
#define _FIXTURE_H

#include <string>
#include <map>
#include <list>
#include <vector>
#include <utility>
#include <algorithm>

using namespace std;

class Fixture
{
protected:
    string fixturename;
    vector<string>faces
    map<string,vector<string> > points;
    map<string,string>locators;
public:
    Fixture();
    Fixture(const Fixture &fix);
    ~Fixture();
    void AddLocateFace(const string &face);
    void AddLocatePoint(const string &face,const string &point);
    void AddLocator(const string &point,const string &locator);
};

Fixture.cpp
#include "Fixture.h"
#include "PrjError.h"

#include <iostream>

Fixture::Fixture()
{
    fixturename="";
}
Fixture::Fixture(const Fixture &fix)
{
    fixturename=fix.fixturename;
    faces=fix.faces;
    points=fix.points;
    locators=fix.locators;
}
Fixture::~Fixture()
{

}

void Fixture::AddLocateFace(const string &face)
{
   vector<string>::iterator ii;
    int found=0;
    for(ii=faces.begin();ii!=faces.end();ii++)
    {
       if(*ii==face)
       {
            found=1;
            break;
       }
     }
   if(found==0)
        faces.push_back(face);
   else
        throw PrjError::PrjError(PrjError::ERR_ALREADY_EXIST);
}

void Fixture::AddLocatePoint(const string &face,const string &point)
{
     map<string,vector<string> >::iterator ii;
     vector<string> temp;
     vector<string>::iterator kk;
     kk=find(faces.begin(),faces.end(),face);
    if(kk==faces.end())
       throw PrjError::PrjError(PrjError::ERR_NOT_FIND);
    ii=points.find(face);
    if(ii==points.end())
    {
        pair<map<string,vector<string> >::iterator,bool> p;
        temp.push_back(point);
        map<string,vector<string> >::value_type newpoint(face,temp);
        p=points.insert(newpoint);
        if(p.second==false)
    throw PrjError::PrjError(PrjError::ERR_INSERT_NEW);
        ii=p.first;
    }
   else
    {
       kk=find(ii->second.begin(),ii->second.end(),point);
       if(kk!=ii->second.end())
           throw PrjError::PrjError(PrjError::ERR_ALREADY_EXIST);
      ii->second.push_back(point);
   }
}

void Fixture::AddLocator(const string &point,const string &locator)
{
    map<string,string>::iterator ii;
    map<string,vector<string> >::iterator jj;
    vector<string>::iterator kk;
    int found=0;

    //find the point
    for(jj=points.begin();jj!=points.end();jj++)
    {
        kk=find(jj->second.begin(),jj->second.end(),point);
        if(kk!=jj->second.end())
        {
            found=1;
            break;
        }
    }

    if(found==0)
        throw PrjError::PrjError(PrjError::ERR_NOT_FIND);
    ii=locators.find(point);
    if(ii!=locators.end())
        throw PrjError::PrjError(PrjError::ERR_ALREADY_EXIST);

    pair<map<string,string>::iterator,bool> p;
    map<string,string>::value_type newlocator(point,locator);
    p=locators.insert(newlocator);

    if(p.second==false)
        PrjError::PrjError(PrjError::ERR_INSERT_NEW);
    ii=p.first;
}

///////////////////////////////////////////////////////////////////////////////
Machine.h

#ifndef _MACHINE_H
#define _MACHINE_H

#include <string>

using namespace std;

class Machine
{
protected:
    string machinename;
public:
    Machine();
    Machine(const Machine & mac);
    ~Machine();
    inline void SetMachinename(const string &name){machinename=name;}
    inline string GetMachinename(){return machinename;}
};

#endif

Machine.cpp
#include "Machine.h"

Machine::Machine()
{
    machinename="";
}
Machine::Machine(const Machine &mac)
{
    machinename=mac.machinename;
}

Machine::~Machine()
{
}

///////////////////////////////////////////////////////////////////////
PrjError.h

#ifndef _PRJERROR_H
#define _PRJERROR_H

class PrjError
{
public:
    enum ERROR_ENUM
    {
        ERR_BAD_PRJNAME,
        ERR_BAD_SETUPNAME,
        ERR_ALREADY_EXIST,
        ERR_BAD_CADNAME,
        ERR_NOT_FIND,
        ERR_INSERT_NEW,

        ERR_MAX_NUM
    };
    PrjError(ERROR_ENUM err);
    const char* geterrormsg(ERROR_ENUM err);
    const char* geterrormsg();
    inline int geterror(){return (int)cur_err;}

protected:
    int cur_err;
    static const char*msg[ERR_MAX_NUM];
};

#endif

PrjError.cpp
#include "PrjError.h"

const char *PrjError::msg[PrjError::ERR_MAX_NUM]={
    "ERROR: Project name can't be empty",
        "ERROR:Setup name can't be empty",
        "ERROR: Project has already existed",
        "ERROR: CAD name can't be empty",

        "Error:Can't find",
        "Error:Fail to insert new element"
};

PrjError::PrjError(ERROR_ENUM err)
{
    cur_err=err;
};

const char*PrjError::geterrormsg(ERROR_ENUM err)
{
    return this->msg[err];
}
const char* PrjError::geterrormsg()
{
    return this->msg[cur_err];
}

///////////////////////////////////////////////////////////////////////////////////
PrjManager.h

#ifndef _PRJMANAGER_H
#define _PRJMANAGER_H

#include <map>
#include <list>
#include <string>

#include "Project.h"
#include "PrjError.h"

using namespace std;

class PrjManager{

public:
    PrjManager();
    ~PrjManager();

    void AddPrj(const Project &prj,const string &prjname);
    void SavePrj(const Project &prj);
    void OpenPrj(const string &prjname);
    string GetCurrentprj();
    void SetCurrentprj(const string &prjname);

    //this is only for test
    void GetPrjlist();

protected:
    map<string,Project*> prjlists;
    Project *currentPrj;
    string currentPrjName;
};

#endif

PrjManager.cpp
#include "PrjManager.h"
#include <iostream>

PrjManager::PrjManager()
{
    currentPrjName="";

}

PrjManager::~PrjManager()
{
    map<string,Project*>::iterator ii;

    for(ii=prjlists.begin();ii!=prjlists.end();++ii)
        prjlists.erase(ii);
}

void PrjManager::AddPrj(const Project &prj,const string &projname)
{

    map<string,Project*>::iterator ii;
    Project *newPrj=NULL;

    char name[256];
    strcpy(name,projname.c_str());
    if(projname.length()==0)
        throw PrjError::PrjError(PrjError::ERR_BAD_PRJNAME);

    ii=prjlists.find(projname);
    if(ii!=prjlists.end())
        throw PrjError::PrjError(PrjError::ERR_ALREADY_EXIST);

    newPrj=new Project(prj);
    prjlists[projname]=newPrj;

}

string PrjManager::GetCurrentprj()
{
    return currentPrjName;
}

void PrjManager::SetCurrentprj(const string &prjname)
{
    map<string,Project*>::iterator ii;

    if(prjname.length()==0)
        currentPrjName="";
    if(prjname!=currentPrjName)
    {
        ii=prjlists.find(prjname);
        if(ii==prjlists.end())
            throw PrjError::PrjError(PrjError::ERR_NOT_FIND);
        currentPrjName=ii->first;
        currentPrj=ii->second;
    }
}

void PrjManager::GetPrjlist()
{
    map<string,Project*>::iterator ii;

    for(ii=prjlists.begin();ii!=prjlists.end();ii++)
    {
        cout << "Project Name: " << ii->first << "\n "<<endl;
    }
}

/////////////////////////////////////////////////////////////////////////////
Project.h
#ifndef _PROJECT_H
#define _PROJECT_H

#include <string>
#include "SetupManager.h"
#include "PrjError.h"

using namespace std;

class Project{
public:
    Project();
    Project(const Project &prj);
    ~Project();

    inline string GetPrjName(){return prjname;}
    inline void SetPrjName(const string &name){prjname=name;}

    inline string GetCadName(){return cadname;}
    inline void SetCadName(const string name){cadname=name;}

    inline void SetSetupmanager(SetupManager& mag){setup=mag;}

    inline void GetSetupmanager(SetupManager &mag){mag=setup;}

protected:
    string prjname;
    //cad name
    string cadname;

    SetupManager setup;

};

#endif

Project.cpp
#include "Project.h"

Project::Project()
{
    prjname="";
    cadname="";

}

Project::Project(const Project &prj)
{
    prjname=prj.prjname;

    cadname=prj.cadname;
    setup=prj.setup;

}

Project::~Project()
{
}

//////////////////////////////////////////////////////////
Setup.h
#ifndef _SETUP_H
#define _SETUP_H

#include <string>
#include <list>
#include "Machine.h"
#include "Fixture.h"
//#include "Orientation.h"

using namespace std;

class Setup
{

protected:
    string setupname;

    Machine machineinfo;
    Fixture fixtureinfo;
    list<string> willfaces;
    list<string> finishedfaces;

public:

    Setup();
    Setup(const Setup&setup);
// ~Setup();
    //for operator =
    Setup& operator=(const Setup &it);

    inline string GetSetupname(){return setupname;}
    inline void SetSetupname(const string &name){setupname=name;}
    inline void GetMachine(Machine &mac){mac=machineinfo;}
    inline void SetMachine(Machine &machine){machineinfo=machine;}
    inline void GetFixture(Fixture &fix){fix=fixtureinfo;}
    inline void SetFixture( Fixture &fix){fixtureinfo=fix;}
    inline void GetFinishedfaces(list<string> &finish)
{finish=finishedfaces;}
// inline void SetFinishedfaces(list<string> &feature)
{finishedfaces=feature;}
    inline void GetWillfaces(list<string> &will){will=willfaces;}
// inline void SetWillfaces(list<string> &will){willfaces=will;}

    void AddWillFace(const string &face);
    void AddFinishedFace(const string &face);

    void DeleteWillFace(const string &face);
    void DeleteFinishedFace(const string &face);

    void RenameWillFace(const string &oldface,const string &newface);
    void RenameFinishedFace(const string &oldface,const string &newface);
};

#endif

Setup.cpp
#include "Setup.h"
#include "PrjError.h"
#include <algorithm>

Setup::Setup()
{
    setupname="";
}
Setup::Setup(const Setup &setup)
{
    finishedfaces=setup.finishedfaces;
    fixtureinfo=setup.fixtureinfo;
    machineinfo=setup.machineinfo;
// orient=setup.orient;
    willfaces=setup.willfaces;

}

Setup& Setup::operator =(const Setup &it)
{
    if(this!=&it)
    {
        this->finishedfaces=it.finishedfaces;
        this->willfaces=it.willfaces;
        this->fixtureinfo=it.fixtureinfo;
        this->machineinfo=it.machineinfo;
    }
    return *this;
}

Setup::~Setup()
{
/* willfaces.erase(willfaces.begin(),willfaces.end());
    finishedfaces.erase(finishedfaces.begin(),finishedfaces.end());*/
}

void Setup::AddFinishedFace(const string &face)
{
    list<string>::iterator ii;

    ii=find(finishedfaces.begin(),finishedfaces.end(),face);

    if(ii!=finishedfaces.end())
        throw PrjError::PrjError(PrjError::ERR_ALREADY_EXIST);
    finishedfaces.push_back(face);
}

void Setup::AddWillFace(const string &face)
{
    list<string>::iterator ii;
    ii=find(willfaces.begin(),willfaces.end(),face);

    if(ii!=willfaces.end())
        throw PrjError::PrjError(PrjError::ERR_ALREADY_EXIST);
    willfaces.push_back(face);
}

void Setup::DeleteFinishedFace(const string &face)
{
    list<string>::iterator ii;
    ii=find(finishedfaces.begin(),finishedfaces.end(),face);
    if(ii==finishedfaces.end())
        throw PrjError::PrjError(PrjError::ERR_NOT_FIND);
    finishedfaces.erase(ii);
}

void Setup::DeleteWillFace(const string &face)
{
    list<string>::iterator ii;
    ii=find(willfaces.begin(),willfaces.end(),face);
    if(ii==willfaces.end())
        throw PrjError::PrjError(PrjError::ERR_NOT_FIND);
    willfaces.erase(ii);
}

void Setup::RenameFinishedFace(const string &oldface,const string
&newface)
{
    list<string>::iterator ii;
    ii=find(finishedfaces.begin(),finishedfaces.end(),oldface);
    if(ii==finishedfaces.end())
        throw PrjError::PrjError(PrjError::ERR_NOT_FIND);

    *ii=newface;
}

void Setup::RenameWillFace(const string &oldface,const string
&newface)
{
    list<string>::iterator ii;
    ii=find(willfaces.begin(),willfaces.end(),oldface);
    if(ii==willfaces.end())
        throw PrjError::PrjError(PrjError::ERR_NOT_FIND);
    *ii=newface;
}

///////////////////////////////////////////////////////////////////////////////////////////////
SetupManager.h
#ifndef _SETUPMANAGER_H
#define _SETUPMANAGER_H

#include <string>
#include <map>
#include "Setup.h"
using namespace std;
class SetupManager
{
protected:
    map<string,Setup*> setuplists;
    Setup *currentSetup;
    string currentSetupId;

public:
    SetupManager();
    SetupManager(const SetupManager& mag);
    ~SetupManager();
    void AddSetup(const Setup &setup,const string &setupname);
    void DeleteSetup(const string &setupname);
    void RenameSetup(const string &oldname,const string &newname);
    inline string GetCurrentSetup(){return currentSetupId;}
    void SetCurrentSetup(const string &setupname);

    //remap
    template<class Map, typename Key>
    bool remap(Map& map, Key const& oldKey, Key const& newKey)
   {

      Map::iterator const oldPos = map.find( oldKey );
     if( oldPos == map.end() )
        return false;
    std::pair<Map::iterator,bool> insInfo
        = map.insert( Map::value_type(newKey, oldPos->second) );
    if( insInfo.second == false ) // new key already exists -> not
added
        return (insInfo.first==oldPos); //-> true if both keys
equivalent
    // NOTE: if the two keys are equivalent for the map without
actually
    // being identical, the value of the key is not changed.
    std::swap( oldPos->second, insInfo.first->second ); //move value
    map.erase( oldPos );
    return true;
   }

   //this is only used for test
 // void GetSetupmanager();

};

#endif

SetupManager.cpp
#include "SetupManager.h"
#include "Machine.h"
#include "Setup.h"
#include "PrjError.h"
#include "Fixture.h"
#include <iostream>

SetupManager::SetupManager()
{
    currentSetupId="";
}
SetupManager::SetupManager(const SetupManager &mag)
{
    currentSetupId=mag.currentSetupId;
    currentSetup=mag.currentSetup;
    setuplists=mag.setuplists;
}
SetupManager::~SetupManager()
{

    map<string,Setup*>::iterator ii;
    for(ii=setuplists.begin();ii!=setuplists.end();++ii)
        delete(ii->second);
    setuplists.clear();
/* map<string,Setup*>::iterator begin,end;
    begin=++setuplists.begin();
    end=--setuplists.end();
    setuplists.erase(begin,end);*/

}

void SetupManager::AddSetup(const Setup &setup,const string
&setupname)
{
    map<string,Setup*>::iterator ii;

    Setup *newSetup=NULL;

    if(setupname.length()==0)
        throw PrjError::PrjError(PrjError::ERR_BAD_SETUPNAME);

    ii=setuplists.find(setupname);

    if(ii==setuplists.end())
    {
        newSetup=new Setup(setup);
        setuplists[setupname]=newSetup;
    }
    else
        throw PrjError::PrjError(PrjError::ERR_NOT_FIND);

}

void SetupManager::DeleteSetup(const string& setupname)
{
    map<string,Setup*>::iterator ii;
    ii=setuplists.find(setupname);
    if(ii==setuplists.end())
        throw PrjError::PrjError(PrjError::ERR_NOT_FIND);
    delete(ii->second);
    setuplists.erase(ii);
}

void SetupManager::RenameSetup(const string& oldname,const string
&newname)
{
    map<string,Setup*>::iterator ii;
    if(newname.length()==0)
        throw PrjError::PrjError(PrjError::ERR_BAD_SETUPNAME);
    ii=setuplists.find(oldname);
    if(ii==setuplists.end())
        throw PrjError::PrjError(PrjError::ERR_NOT_FIND);
// (*ii).first=newname;
    this->remap<map<string,Setup*>,string> (setuplists,oldname,newname);

}

void SetupManager::SetCurrentSetup(const string &setupname)
{
    map<string,Setup*>::iterator ii;
    if(setupname.length()==0)
        throw PrjError::PrjError(PrjError::ERR_BAD_SETUPNAME);
    else if(setupname!=currentSetupId)
    {
        ii=setuplists.find(setupname);
        if(ii==setuplists.end())
            throw PrjError::PrjError(PrjError::ERR_NOT_FIND);
        currentSetupId=setupname;
        currentSetup=ii->second;
    }
}

/////////////////////////////////////////////////////////////////////////////////////

Ugoperation.h
#ifndef _UGOPERATION_H
#define _UGOPERATION_H

#include <string>
using namespace std;

class Ugoperation
{
protected:
    string faceId;
    string pointId;
    string locatorId;
    string cadname;

public:

    void Ug_opencad(const string &name);
    void Ug_getface();
    void Ug_getpoint();
    void Ug_getlocator();

    inline void Ug_setfaceid(const string &id){faceId=id;}
    inline string Ug_getfaceid(){return faceId;}
    inline void Ug_setpointid(const string &id){pointId=id;}
    inline string Ug_getpointid(){return pointId;}
    inline void Ug_setlocatorid(const string &id){locatorId=id;}
    inline string Ug_getlocatorid(){return locatorId;}
};

#endif

Ugoperation.cpp
#include "Ugoperation.h"
#include<iostream>
#include<sstream>

int testface=10;
int testpoint=100;
int testlocator=1000;
string cadname("c:/test.prt");

void Ugoperation::Ug_getface()
{
    //here is only for test,later should add some ug api functions
    stringstream s;
    testface+=1;
    s << testface;

    faceId=s.str();
}

void Ugoperation::Ug_getpoint()
{
    //here is only for test
    stringstream s;
    testpoint+=1;
    s<<testpoint;

    pointId=s.str();
}

void Ugoperation::Ug_getlocator()
{
    stringstream s;
    testlocator+=1;
    s << testlocator;

    locatorId=s.str();
}

void Ugoperation::Ug_opencad(const string &name)
{
    //only for test

    cadname=name;
}

/////////////////////////////////////////////////////////////////////////////////////////
testmain.cpp
#include "PrjManager.h"
#include "Project.h"
#include "PrjError.h"
#include "Setup.h"
#include "Ugoperation.h"
#include "Fixture.h"
#include "Machine.h"
#include "SetupManager.h"

#include <string>
#include <iostream>
using namespace std;

int main()
{
    PrjManager prjmanager;
    Ugoperation op;
    Fixture fix;
    Machine mac;
    Setup setup;
    SetupManager setupmag;

// vector<string> pfaces;

    string macname("Machine1");

    Project prj;
// Project prj2;

    string facename[3];
    string pointname[6];
    string locator[6];

    //suppose get three faces
    op.Ug_getface();
    facename[0]=op.Ug_getfaceid();
    op.Ug_getface();
    facename[1]=op.Ug_getfaceid();
    op.Ug_getface();
    facename[2]=op.Ug_getfaceid();

    //get six points
    for(int i=0;i<6;i++)
    {
        op.Ug_getpoint();
        pointname[i]=op.Ug_getpointid();
        op.Ug_getlocator();
        locator[i]=op.Ug_getlocatorid();
    }

    for(int i=0;i<3;i++)
    {
        fix.AddLocateFace(facename[i]);

    }

// fix.GetFacesFromVector(pfaces);

    for(int j=0;j<6;j++)
    {
        if(j<3)
            fix.AddLocatePoint(facename[0],pointname[j]);
        if(j>2 && j<5)
            fix.AddLocatePoint(facename[1],pointname[j]);
        if(j==5)
            fix.AddLocatePoint(facename[2],pointname[j]);
    }

    for(int j=0;j<6;j++)
    {
        fix.AddLocator(pointname[j],locator[j]);
    }

    setup.SetFixture(fix);

    //add machine info
    mac.SetMachinename(macname);

    setup.SetMachine(mac);

    //add will faces and finished faces, here is only for test
    list<string> will;
    list<string> finish;

    string willface[2]={"001","002"};
    string finishedface[4]={"003","004","005","006"};
    for(int i=0;i<4;i++)
    {
        setup.AddFinishedFace(finishedface[i]);
    }
    for(int i=0;i<2;i++)
        setup.AddWillFace(willface[i]);

    //to deal with setup manager
    setupmag.AddSetup(setup,"setup1");

    setupmag.SetCurrentSetup("setup1");

// setupmag.GetSetupmanager();

    prj.SetSetupmanager(setupmag);

// prj.SetPrjName("projetct 1");

    prjmanager.AddPrj(prj,"project 1");
    return 0;

}

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