Update SU2_CFD/src/solvers/CEulerSolver.cpp

Co-authored-by: TobiKattmann <31306376+TobiKattmann@users.noreply.github.com>

Author: pcarruscag

SU2_CFD/src/solvers/CEulerSolver.cpp

@@ -4465,11 +4465,11 @@ void CEulerSolver::SetCoefficient_Gradients(CConfig *config) const{
 
   /*--- Calculate gradients of coefficients w.r.t. CL ---*/
 
-  su2double dCL_dAlpha_ = (TotalCoeff.CL-Total_CL_Prev)/(AoA - AoA_Prev);
-  su2double dCD_dCL_    = (TotalCoeff.CD-Total_CD_Prev)/(TotalCoeff.CL-Total_CL_Prev);
-  su2double dCMx_dCL_   = (TotalCoeff.CMx-Total_CMx_Prev)/(TotalCoeff.CL-Total_CL_Prev);
-  su2double dCMy_dCL_   = (TotalCoeff.CMy-Total_CMy_Prev)/(TotalCoeff.CL-Total_CL_Prev);
-  su2double dCMz_dCL_   = (TotalCoeff.CMz-Total_CMz_Prev)/(TotalCoeff.CL-Total_CL_Prev);
+  const su2double dCL_dAlpha_ = (TotalCoeff.CL-Total_CL_Prev)/(AoA - AoA_Prev);
+  const su2double dCD_dCL_    = (TotalCoeff.CD-Total_CD_Prev)/(TotalCoeff.CL-Total_CL_Prev);
+  const su2double dCMx_dCL_   = (TotalCoeff.CMx-Total_CMx_Prev)/(TotalCoeff.CL-Total_CL_Prev);
+  const su2double dCMy_dCL_   = (TotalCoeff.CMy-Total_CMy_Prev)/(TotalCoeff.CL-Total_CL_Prev);
+  const su2double dCMz_dCL_   = (TotalCoeff.CMz-Total_CMz_Prev)/(TotalCoeff.CL-Total_CL_Prev);
 
   /*--- Set the value of the  dOF/dCL in the config file ---*/