boost::logic::operator&& — Computes the logical conjuction of two tribools.
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);
the result of logically ANDing the two tribool values, according to the following table:
&&