See Right Zero Element Promotion.
See Left Zero Element Promotion.
X1f4_E4_RDBX_LESS_NONEindicates that any value but the specified value is a zero (or absorbing)
element (for logical OR any value but zero is a absorbing element). The
specified value is here the one indicated by the data field of the
struct x1f4_rdbl_type or struct x1f4_rdbo_type optimization
definition.
X1f4_E4_RDBX_MISS_TYPEindicates that the substituting value is indicated by the miss field of
the struct x1f4_rdbl_type or struct x1f4_rdbo_type optimization
definition. When the flag is not specified, the tested value of the zero
element, the one indicated by the data field, is also the substituting
value.