Hi Root,
a follow-on question to my earlier one.
if i have
TLorentzVector *v1, *v2;
TLorentzVector v3, v4;
// do something to give values to v1 and v3 ...
v2 = v1;
v4 = v3;
*v2 = *v1;
are these assignments all doing the same thing? I might suspect that
the first one makes v2 point to the same object to which v1 is
momentarily pointing. However the second assignment would appear to
depend on C++'s semantics for shallow vs. deep copies, as would the
third form, and I would not know whether to expect the second and
third forms to be equivalent.
I don't know how to interpret:
TLorentzVector& operator=(const TLorentzVector& q)
It looks like addresses are being copied, but ... Where in Lippman's
book does he such games? Or is there another book in which I should
be looking?
At least my hair cannot go grey quickly as most of it has already
fallen out.
JT
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