Method solution

test/float/trigonometric.cpp:396–398

%Test whether \a x is solution

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