42 if (
nullptr == theInstance) {
44 if (
nullptr == theInstance) {
46 theInstance = &manager;
53G4DNAMaterialManager::G4DNAMaterialManager() {
#define G4MUTEX_INITIALIZER
static G4DNAMaterialManager * Instance()
void SetMasterDataModel(const DNAModelType &t, G4VEmModel *m)
G4VEmModel * GetModel(const DNAModelType &t)
static G4NistManager * Instance()
static G4StateManager * GetStateManager()