All elements in the mask VV that are same as string will replace the original VV with a 1. The modified VV will always be expanded to the MaskVV size but not shortened after this call. If the mask is longer than the target, the target will be lengthenned with dummies before applying the mask.

public void MaskStr(
	CVV vv_m,
	string str_val
)

Public Sub MaskStr ( 
	vv_m As CVV,
	str_val As String
)

public:
void MaskStr(
	CVV^ vv_m, 
	String^ str_val
)

member MaskStr : 
        vv_m : CVV * 
        str_val : string -> unit