Fix -Wreorder error

src/Classic/Algorithms/AmrPartBunch.cpp

@@ -4,9 +4,9 @@
 
 AmrPartBunch::AmrPartBunch(const PartData *ref)
     : PartBunchBase<double, 3>(new AmrPartBunch::pbase_t(new AmrLayout_t()), ref),
-      fieldlayout_m(nullptr),
       amrobj_mp(nullptr),
-      amrpbase_mp(dynamic_cast<AmrPartBunch::pbase_t*>(pbase))
+      amrpbase_mp(dynamic_cast<AmrPartBunch::pbase_t*>(pbase)),
+      fieldlayout_m(nullptr)
 {
     amrpbase_mp->initializeAmr();
 }
@@ -15,9 +15,9 @@ AmrPartBunch::AmrPartBunch(const PartData *ref)
 AmrPartBunch::AmrPartBunch(const std::vector<OpalParticle> &rhs,
                            const PartData *ref)
     : PartBunchBase<double, 3>(new AmrPartBunch::pbase_t(new AmrLayout_t()), rhs, ref),
-      fieldlayout_m(nullptr),
       amrobj_mp(nullptr),
-      amrpbase_mp(dynamic_cast<AmrPartBunch::pbase_t*>(pbase))
+      amrpbase_mp(dynamic_cast<AmrPartBunch::pbase_t*>(pbase)),
+      fieldlayout_m(nullptr)
 {
     amrpbase_mp->initializeAmr();
 }
@@ -25,9 +25,9 @@ AmrPartBunch::AmrPartBunch(const std::vector<OpalParticle> &rhs,
 
 AmrPartBunch::AmrPartBunch(const AmrPartBunch &rhs)
     : PartBunchBase<double, 3>(rhs),
-      fieldlayout_m(nullptr),
       amrobj_mp(nullptr),
-      amrpbase_mp(dynamic_cast<AmrPartBunch::pbase_t*>(pbase))
+      amrpbase_mp(dynamic_cast<AmrPartBunch::pbase_t*>(pbase)),
+      fieldlayout_m(nullptr)
 {
     amrpbase_mp->initializeAmr();
 }