SDDS_table: Address of the SDDS_TABLE structure for the data set.
name: A NULL-terminated character string giving the name of the column. Must be
supplied.
units: A NULL-terminated character string giving the units of the column. If none is
desired, pass NULL.
type: An integer value specifying the data type of the column. Must be one of
the following constants, defined in SDDS.h: SDDS_LONGDOUBLE, SDDS_DOUBLE,
SDDS_FLOAT, SDDS_LONG, SDDS_ULONG, SDDS_SHORT, SDDS_USHORT,
SDDS_CHARACTER, or SDDS_STRING.
return value: Returns 1 on success. On failure, returns 0 and records an error message.