PID Traits : RTTI Example

• So we have the container of PID traits, but I want the TPC dE/dx
• Need type information at run-time : dynamic_cast

StSPtrVecTrackPidTraits& pidvec= track->pidTraits();

for (StTrackPidTraitsIterator pi=pidvec.begin(); pi!=pidvec.end(); ++pi) {

StDeDxPidTraits* dedxtr = dynamic_cast<StDeDxPidTraits*> (*pi);

if (dedxtr) {

// Ok! Found it, now can use the methods.

cout << “Truncated Mean ” << dedxtr->mean() << endl;

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