Method solution

test/float/arithmetic.cpp:398–400

%Test whether \a x is solution

       : Test("Arithmetic::Pow::N::"+str(_n)+"::XY::Sol::"+s,2,d,st,EXTEND_ASSIGNMENT,false), n(_n) {}
       /// %Test whether \a x is solution
       virtual MaybeType solution(const Assignment& x) const {
         return eq(pow(x[0],n), x[1]);
       }
       /// Extend assignment \a x
       virtual bool extendAssignment(Assignment& x) const {
         Gecode::FloatVal d = pow(x[0],n);