[Dev-C++] Passing by value or reference to constructor initialiation list

[Daniel G. <sp...@ho...>]

I would like to know whether it is better to pass the following string 
objects and integer by value or reference to my constructor initialisation 
list.

Vehicle::Vehicle
(
    String& VehicleName,
    String& VehicleType,
    int SerialNumber
):
mVehicleName(VehicleName),
mVehicleType(VehicleType),
mSerialNumber(SerialNumber)
{
}

an integer is only 4 bytes I think, so by value would be fine, but what 
about the string objects? Can I pass by reference?


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