#include <boost/multiprecision/float128.hpp>
-#include <boost/math/special_functions/fpclassify.hpp> // isnan, ifinite.
+#include <boost/math/special_functions/fpclassify.hpp> // isnan, isfinite.
#include <boost/math/special_functions/next.hpp> // float_next, float_prior
using boost::math::float_next;
using boost::math::float_prior;