An ID data structure maps an individual result returned from an ID C API function.
The data type CTG_IdData_t is defined in the C language header files. The data provides a name for individual results within statistical groups or statistics.
Individual results can be accessed using the getFirstId and getNextId functions.
CTG_IdData_t provides two fields, a character pointer and length, to enable access to individual elements of an ID result set, as described in Correlating results and error checking.