g++ and VC 2003

28 Jun 2004

      Hi.
I am developing a 3d application in SuSE Linux 9.0 in C++.
I ported the application in WinXP using VStudio2003. The fun stuff is that
the application executes in Linux but it crashes immediatelly in WinXP.
I think i found what is causing the segfault in windows.
I have the following classes (which are bad-coded by the way ;) :

class Vertex3d
{
    public:

    double x,y,z;
    long num;

    Vertex3d()
    {
        x = 0;
        y = 0;
        z = 0;
        num = 0;
    }

    /* Creates a new instance of Vertex3d */
    Vertex3d(double x_,double y_,double z_,long num)
    {
        x = x_;
        y = y_;
        z = z_;
        this->num = num;
    }

   int draw()
   {
      glBegin(GL_POINTS);
         glVertex3d(x, y, z);
     glEnd();

     return 0;
   }

   int draw(double px,double py,double pz)
   {
      glBegin(GL_POINT)
         glVertex3d(px, py, pz);
     glEnd();

     return 0;
   }

    double distance(Vertex3d t)
    {
            return sqrt(pow(((Vertex3d)t).x - x , 2) +
                             pow(((Vertex3d)t).y - y , 2) +
                             pow(((Vertex3d)t).z - z , 2));
    }

};

#include "Vertex3d.h"

class Cone
{
   public:
      GLuint selectionName;
      bool isSelected;
      Vertex3d bottomCentre;
      double bottomRadius;
      Vertex3d topCentre;
      double topRadius;
      float* vertices1;
      float* vertices2;
      float* Upper;
      float* Lower;
      float *table;

   Cone()
   {
      ;
   }

   Cone(Vertex3d bottomCentre, double bottomRadius, Vertex3d topCentre,
double topRadius)
   {
      this->bottomCentre = bottomCentre;
      this->bottomRadius = bottomRadius;
      this->topCentre = topCentre;
      this->topRadius = topRadius;

      selectionName = 0;
      isSelected = false;

      vertices1 = (float *)malloc( sizeof(float) * 2 * (30 + 1) );
      vertices2 = (float *)malloc( sizeof(float) * 2 * (30 + 1) );
      Upper = (float *)malloc( sizeof(float) * 3 * (30 + 1) );
      Lower = (float *)malloc( sizeof(float) * 3 * (30 + 1) );;

   }

};

In the begining of the main.cpp i do the following:
float x=2.0, y=6.0f, z=1.5;
Cone cone1(Vertex3d(10*x, 0, 10*z, 100), 1, Vertex3d(10*x, 0, 10*z+5, 2), 0.00);
Cone cone2(Vertex3d(9*x, 0, 9*z, 100), 0.7, Vertex3d(9*x, 0, 9*z+3, 2), 0.00);
Cone cone3(Vertex3d(9*x, 0, 11*z, 100), 0.7, Vertex3d(9*x, 0, 11*z+3, 2), 0.00);
Cone cone4(Vertex3d(11*x, 0, 9*z, 100), 0.7, Vertex3d(11*x, 0, 9*z+3, 2), 0.00);
Cone cone5(Vertex3d(11*x, 0, 11*z, 100), 0.7, Vertex3d(11*x, 0, 11*z+3, 2), 0.00);

I think that the previous declarations cause my app to crash in WinXP. Why
does this happens in WinXP although the app runs in Linux?

thanks.

g++ and VC 2003

Filippos Papadopoulos