36     memset((
void*)drops.
begin(), 0, drops.
size()*
sizeof(char));
    49   static int Tcl_print(ClientData, Tcl_Interp *, 
int, 
const char **);
    50   static int Tcl_wrapmode(ClientData, Tcl_Interp *, 
int, 
const char **);
    51   static int Tcl_cleardrops(ClientData, Tcl_Interp *, 
int, Tcl_Obj * 
const []);
    52   static int Tcl_dropatom(ClientData, Tcl_Interp *, 
int, Tcl_Obj * 
const []);
    53   static int Tcl_nextatom(ClientData, Tcl_Interp *, 
int, Tcl_Obj * 
const []);
    54   static int Tcl_getcoord(ClientData, Tcl_Interp *, 
int, Tcl_Obj * 
const []);
    55   static int Tcl_getcell(ClientData, Tcl_Interp *, 
int, Tcl_Obj * 
const []);
    56   static int Tcl_getmass(ClientData, Tcl_Interp *, 
int, Tcl_Obj * 
const []);
    57   static int Tcl_getcharge(ClientData, Tcl_Interp *, 
int, Tcl_Obj * 
const []);
    58   static int Tcl_getid(ClientData, Tcl_Interp *, 
int, Tcl_Obj * 
const []);
    59   static int Tcl_addforce(ClientData, Tcl_Interp *, 
int, Tcl_Obj * 
const []);
    60   static int Tcl_addenergy(ClientData, Tcl_Interp *, 
int, Tcl_Obj * 
const []);
 
ComputeTclBC(ComputeID c)