update source to Ceph Pacific 16.2.2

[ceph.git] / ceph / src / boost / boost / math / quadrature / gauss_kronrod.hpp

diff --git a/ceph/src/boost/boost/math/quadrature/gauss_kronrod.hpp b/ceph/src/boost/boost/math/quadrature/gauss_kronrod.hpp
index fe6ba92c9d06b610a08f9d8ec413cec35370de9c..3deeb8bef4f187f17cdd511e2e950db6ea3acd2a 100644 (file)
--- a/ceph/src/boost/boost/math/quadrature/gauss_kronrod.hpp
+++ b/ceph/src/boost/boost/math/quadrature/gauss_kronrod.hpp
@@ -1927,11 +1927,15 @@ public:
 
          if ((boost::math::isfinite)(a) && (boost::math::isfinite)(b))
          {
-            if (b <= a)
+            if (a==b)
             {
-               return policies::raise_domain_error(function, "Arguments to integrate are in wrong order; integration over [a,b] must have b > a.", a, Policy());
+               return K(0);
             }
             recursive_info<F> info = { f, tol };
+            if (b < a)
+            {
+               return -recursive_adaptive_integrate(&info, b, a, max_depth, Real(0), error, pL1);
+            }
             return recursive_adaptive_integrate(&info, a, b, max_depth, Real(0), error, pL1);
          }
       }