4263         friend void addOptName( Arg& arg, std::string const& optName )  in addOptName()  argument
4265             if( optName.empty() )  in addOptName()
4267             if( Detail::startsWith( optName, "--" ) ) {  in addOptName()
4272                         + optName + "'" );  in addOptName()
4273                 arg.longName = optName.substr( 2 );  in addOptName()
4275             else if( Detail::startsWith( optName, "-" ) )  in addOptName()
4276                 arg.shortNames.push_back( optName.substr( 1 ) );  in addOptName()
4278 …         throw std::logic_error( "option must begin with - or --. Option was: '" + optName + "'" );  in addOptName()
4351             OptBuilder& operator[]( std::string const& optName ) {  in operator []()  argument
4352                 addOptName( *ArgBuilder::m_arg, optName );  in operator []()
4380         OptBuilder operator[]( std::string const& optName ) {  in operator []()  argument
4382             addOptName( m_options.back(), optName );  in operator []()