access access append append_bintable append_bintable append_bintable_header append_image append_image_header append_null_bintable append_null_image appendBintable appendBintableHeader appendImage appendImageHeader appendNullBintable appendNullImage close filter find hdu_count hduCount MefFile operator[] primary read_hdu_names read_hdu_names_versions readHduNames readHduNamesVersions remove strategy strategy strategy ~MefFile

access() [1/2] const T & access ( const std::string &  name, long  version = 0  ) Access the only HDU with given name, type and version. Template Parameters T The type of HDU or header or data unit handler Throws an exception if several HDUs with given name exists. Warning In order to ensure uniqueness of the name, all HDUs are visited, which may have a non-negligible I/O cost. See also find()