TMap

ROOT
1

Is it possible to store and Int_t as a key and a TLorentzVector as a value using TMap?
I tried the following but it did not compile

TMap* Map;
TLorentzVector LorentzVector(-100,-100,-100,-100);
Int_t Integer = 1;

Map->Add(Integer, LorentzVector);

Cheers,

Ben

2

[quote]Is it possible to store and Int_t as a key and a TLorentzVector as a value using TMap? [/quote]No.
Function members of TMap class:virtual void Add(TObject* obj) void Add(TObject* key, TObject* value)
Jan

3

Hi,

use a vector (a natural way of mapping ints to something else), e.g. a TObjArray / TClonesArray, or a std::vector. If that doesn’t do it because your ints have a range too high then use a std::map<int, TLorentzVector>.

Cheers, Axel.