...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
boost::logic::operator!= — Compare tribools for inequality.
// In header: <boost/logic/tribool.hpp> BOOST_CONSTEXPR tribool operator!=(tribool x, tribool y); BOOST_CONSTEXPR tribool operator!=(tribool x, bool y); BOOST_CONSTEXPR tribool operator!=(bool x, tribool y); BOOST_CONSTEXPR tribool operator!=(indeterminate_keyword_t, tribool x); BOOST_CONSTEXPR tribool operator!=(tribool x, indeterminate_keyword_t);