GPU TPCFastTransformation: Do not use double

Author: davidrohr

GPU/TPCFastTransformation/Spline1DSpec.h

@@ -392,7 +392,7 @@ class Spline1DSpec<DataT, YdimT, 0> : public Spline1DContainer<DataT>
     dSdDr = v * a;
 
     T dv = T(knotL.Li);
-    dDdSr = 6. * v * (T(1.) - v) * dv;
+    dDdSr = T(6.) * v * (T(1.) - v) * dv;
     dDdSl = -dDdSr;
     dDdDl = vm1 * (v + v + vm1);
     dDdDr = v * (v + vm1 + vm1);
@@ -567,7 +567,7 @@ class Spline1DSpec<DataT, 1, 3>
   /// Simplified interface for 1D: return the interpolated value
   GPUd() DataT interpolate(DataT x) const
   {
-    DataT S = 0.;
+    DataT S = 0;
     TBase::interpolate(x, &S);
     return S;
   }

GPU/TPCFastTransformation/Spline2DSpec.h

@@ -659,7 +659,7 @@ class Spline2DSpec<DataT, 1, 3>
   /// Simplified interface for 1D: return the interpolated value
   GPUd() DataT interpolate(DataT x1, DataT x2) const
   {
-    DataT S = 0.;
+    DataT S = 0;
     TBase::interpolate(x1, x2, &S);
     return S;
   }

GPU/TPCFastTransformation/SplineSpec.h

@@ -537,7 +537,7 @@ class SplineSpec<DataT, XdimT, 1, 3>
   /// Simplified interface for 1D: return the interpolated value
   GPUd() DataT interpolate(const DataT x[]) const
   {
-    DataT S = 0.;
+    DataT S = 0;
     TBase::interpolate(x, &S);
     return S;
   }

GPU/TPCFastTransformation/TPCFastSpaceChargeCorrection.h

@@ -65,7 +65,7 @@ class TPCFastSpaceChargeCorrection : public FlatObject
       this->zScale = zScale_;
       this->zOut = zOut_;
       // no scaling when the distance to the readout is too small
-      this->splineScalingWithZ = fabs(zReadout_ - zOut_) > 1. ? 1. / (zReadout_ - zOut_) : 0.;
+      this->splineScalingWithZ = fabs(zReadout_ - zOut_) > 1.f ? 1.f / (zReadout_ - zOut_) : 0.f;
     }
 
     float getY0() const { return y0; }