boost::logic::operator== — Compare tribools for equality.
tribool operator==(tribool x, tribool y); tribool operator==(tribool x, bool y); tribool operator==(bool x, tribool y); tribool operator==(indeterminate_keyword_t , tribool x); tribool operator==(tribool x, indeterminate_keyword_t );
Returns: the result of comparing two tribool values, according to the following table:
==
