void Histogram<DIM, POS, VAL>::operator-=(const Histogram<DIM, POS, VAL>& i_histo) { if(i_histo.getSize() != this->getSize()) { throw exception::Message("Histogram::operator+= wrong size", STK_DBG_INFO); } for(int i=0; i<this->getArraySize(); i++) { this->getFromIndice(i) -= i_histo.getFromIndice(i); } }