- int nbC1(_array->getNumberOfComponents()),nbC2(other->_array->getNumberOfComponents());
- int nbMin(std::min(nbC1,nbC2));
+ std::size_t nbC1(_array->getNumberOfComponents()),nbC2(other->_array->getNumberOfComponents());
+ std::size_t nbMin(std::min(nbC1,nbC2));