Consider this related question: Deep cloning objects
Is this really the best way to clone an object? (serialize/deserialize). Serialization seems a bit expensive to me.
My idea was to create a second constructor and just assign all variables. Would this approach be faster?
class Test
{
public Test(Test clone)
{
// clone ....
}
}
If you are talking about using a custom class, the best way is to implement ICloneable. This way your class can provide a standardized way to clone itself.
There are some times when using a 'copy constructor' can be better, but usually only if you can see that it would be simple, and ICloneable doesn't meet your needs adequately.