+ /* check types of elements to avoid mixture of elements from
+ different types. Also check if type of element is "compatible"
+ with element type of powerset */
+ if (TYPE_CODE (range_low_type) == TYPE_CODE_RANGE)
+ range_low_type = TYPE_TARGET_TYPE (range_low_type);
+ if (TYPE_CODE (range_high_type) == TYPE_CODE_RANGE)
+ range_high_type = TYPE_TARGET_TYPE (range_high_type);
+ if ((TYPE_CODE (range_low_type) != TYPE_CODE (range_high_type)) ||
+ (TYPE_CODE (range_low_type) == TYPE_CODE_ENUM &&
+ (range_low_type != range_high_type)))
+ /* different element modes */
+ error ("POWERSET tuple elements of different mode");
+ if ((TYPE_CODE (check_type) != TYPE_CODE (range_low_type)) ||
+ (TYPE_CODE (check_type) == TYPE_CODE_ENUM &&
+ range_low_type != check_type))
+ error ("incompatible POWERSET tuple elements");