std::ostream& operator<<(std::ostream &os, const gdcmException &e) {
try {
os << "Exception " << e.getName() << " thrown: " << e.getError() << std::endl;
std::ostream& operator<<(std::ostream &os, const gdcmException &e) {
try {
os << "Exception " << e.getName() << " thrown: " << e.getError() << std::endl;