.. efun:: mixed get_combine_charset(int mode)
  :include: <comm.h>

  Return the combine charset of the current interactive in the form requested by :arg:`mode`:

    - :arg:`mode` == :macro:`CHARSET_VECTOR`: return as bitvector
    - :arg:`mode` == :macro:`CHARSET_STRING`: return as string

  The bitvector is interpreted as an array of 8-bit-values and might contain up to 32 elements. Character n is "combinable" if ``sizeof(bitvector) > n/8 && bitvector[n/8] & (1 << n%8)``.

  If there is no current interactive, the function returns 0.

  :history 3.2.10 introduced:

  .. seealso:: :efun:`get_connection_charset`, :efun:`get_connection_charset`