[Dev-C++] newbie: String parsing problems

Hi all,
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Thank you in advance for any help you can offer.
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Im now trying to parse through a string variable that is comma
seperated.
I keep crashing the application with my very crude code. Can anyone
recommend
a different amateur way of doing this?=20
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Here is my code:

 string member; //holds the whole string
  string id; //first part to extract
  string fname; // second part..
  string lname; // etc.
  string address;
  int k; // this is var to increment. =20
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ifstream inData;
inData.open("test.txt");
getline ( inData, member );

k =3D 0;
  for(int i =3D 0; member[i] !=3D ','; i++)
  {id  =3D id + member[i]; k =3D i;}
++k;
  for(int i =3D k; member[i] !=3D ','; i++)
  {fname  =3D fname + member[i]; k =3D i;}
++k;
  for(int i =3D k; member[i] !=3D ','; i++)
  {lname  =3D lname + member[i]; k =3D i;}
++k;
  for(int i =3D k; member[i] !=3D member.length(); i++)
  {address  =3D address + member[i]; k =3D i;}
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cout << id << " " << fname << " " << lname << " " << address << endl;


Best regards,
Dane