/sys$common/syshlp/helplib.hlb CC, Language topics, Preprocessor, #dictionary  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  The #dictionary directive is retained for compatibility with VAX C
  and is supported only when running the Compaq C compiler in VAX C
  mode (/STANDARD=VAXC).  See also the ANSI C equivalent #pragma
  dictionary directive.

  The #dictionary directive extracts Common Data Dictionary (CDD)
  definitions from the specified dictionary.  These definitions are
  then translated into Compaq C and included in the program.

  The #dictionary directive has the following form:

       #dictionary "cdd_path"

  The cdd_path is a character string that gives the path name of the
  CDD record.  It can also be a macro that resolves to such a
  character string.