- const saml2md::MetadataProvider* metadataProvider=NULL,
- const xmltooling::QName* role=NULL,
- const xmltooling::TrustEngine* trustEngine=NULL,
+ const saml2md::MetadataProvider* metadataProvider=nullptr,
+ const xmltooling::QName* role=nullptr,
+ const xmltooling::TrustEngine* trustEngine=nullptr,