PK_bound_side_t

typedef int PK_bound_side_t;

Used in:

PK_bound_def_t

This datatype indicates which side of a bounding entity intersecting the
profile should be in the first division when extruding.

It has the values:
    PK_bound_side_both_c:       Both sides should be in the first division.
    PK_bound_side_out_c:        The outside should be in the first division.
    PK_bound_side_in_c:         The inside should be in the first division.