Managed C++/CLI

for(System::Int32 i=0; i<numOfBits_int+3; i++){
   switch(i)
    {
	case 0:
	stateA^ node0 = gcnew stateA(i,0,-1,-1);
	aux_trellis1a[i] = node0;
	break;	
	
	case 1:
	String^ str1 = encodedBits2->Text->Substring((position + 1)+(i-1)*3,2); 
	String^ str2 = aux_trellis1a[i-1]->output0;
	String^ str3 = aux_trellis1a[i-1]->output1;

        stateA^ node1 = gcnew stateA(i,aux_trellis1a[i-1]->metric + compareStrings(str1,str2),i-1,0);
	stateB^ node2 = gcnew stateB(i,aux_trellis1a[i-1]->metric + compareStrings(str1,str3),i-1,1);
	aux_trellis1a[i] = node1; 
	aux_trellis1b[i] = node2;
	break;

	case 2:
	String^ str4 = encodedBits2->Text->Substring((position + 1)+(i-1)*3,2); 
	String^ str5 = aux_trellis1a[i-1]->output0;
	String^ str6 = aux_trellis1a[i-1]->output1;

	stateA^ node3 = gcnew stateA(i,aux_trellis1a[i-1]->metric + compareStrings(str4,str5),i-1,0);
	stateB^ node4 = gcnew stateB(i,aux_trellis1a[i-1]->metric + compareStrings(str4,str6),i-1,1);
	aux_trellis1a[i] = node3; 
	aux_trellis1b[i] = node4;	

        String^ str7 = encodedBits2->Text->Substring((position + 1)+(i-1)*3,2); 
	String^ str8 = aux_trellis1b[i-1]->output0;
	String^ str9 = aux_trellis1b[i-1]->output1;

	stateC^ node5 = gcnew stateC(i,aux_trellis1b[i-1]->metric + compareStrings(str7,str10),i-1,0);
	stateD^ node6 = gcnew stateD(i,aux_trellis1b[i-1]->metric + compareStrings(str7,str11),i-1,1);
	aux_trellis1c[i] = node5;
	aux_trellis1d[i] = node6;
	break;
 }//close switch
}//close for