PVS-Studio warning V557 for Geant4

enum { NENERGY=22, NANGLE=180 };

class G4LEpp : public G4HadronicInteraction
{
  ....
  G4float * sig[NANGLE];
  static G4float SigCoul[NENERGY][NANGLE];
  ....
};

G4LEpp::SetCoulombEffects(G4int State)
{
  if (State) {
    for(G4int i=0; i<NANGLE; i++)
    {
      sig[i] = SigCoul[i];
    }
    elab = ElabCoul;
  }
  ....
}

This suspicious code was found in Geant4 project by PVS-Studio static code analyzer.
Warning message is:
V557 Array overrun is possible. The value of 'i' index could reach 179. g4lepp.cc 62

PVS-Studio is a static analyzer for detecting bugs in the source code of applications written in C, C++, C++11, C++/CX. Site: http://www.viva64.com/en/pvs-studio/