VectorUtil.h

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#ifndef GeometryVector_Geom_Util_h
#define GeometryVector_Geom_Util_h

#include "DataFormats/GeometryVector/interface/Pi.h"
#include "DataFormats/Math/interface/deltaR.h"
#include <cmath>

namespace Geom {
  using reco::deltaPhi;
  using reco::deltaR;
  using reco::deltaR2;

  inline bool phiLess(float phi1, float phi2) { return deltaPhi(phi1, phi2) < 0; }
  inline bool phiLess(double phi1, double phi2) { return deltaPhi(phi1, phi2) < 0; }
  template <class Vector1, class Vector2>
  bool phiLess(const Vector1& v1, const Vector2& v2) {
    return deltaPhi(v1.phi(), v2.phi()) < 0.;
  }

}  // namespace Geom

#endif