Implement exb88, exb88_sp, eclyp, eclyp_sp functions

as static members to allow reuse by other classes.


git-svn-id: http://qboxcode.org/svn/qb/trunk@1837 cba15fb0-1239-40c8-b417-11db7ca47a34

src/BLYPFunctional.h

@@ -30,18 +30,24 @@ class BLYPFunctional : public XCFunctional
                  _vxc2, _vxc2_upup, _vxc2_updn, _vxc2_dnup, _vxc2_dndn;
   std::vector<double> _grad_rho[3], _grad_rho_up[3], _grad_rho_dn[3];
 
-  void excblyp(double rho, double grad,
-    double *exc, double *vxc1, double *vxc2);
-
-  void excblyp_sp(double rho_up, double rho_dn,
-    double grad_up2, double grad_dn2, double grad_up_grad_dn,
-    double *exc_up, double *exc_dn, double *vxc1_up, double *vxc1_dn,
-    double *vxc2_upup, double *vxc2_dndn, double *vxc2_updn, double *vxc2_dnup);
-
   public:
 
   BLYPFunctional(const std::vector<std::vector<double> > &rhoe);
 
+  static void exb88(double rho, double grad,
+    double *ex, double *vx1, double *vx2);
+  static void eclyp(double rho, double grad,
+    double *ec, double *vc1, double *vc2);
+
+  static void exb88_sp(double rho_up, double rho_dn,
+    double grad_up2, double grad_dn2, double grad_up_grad_dn,
+    double *ex_up, double *ex_dn, double *vx1_up, double *vx1_dn,
+    double *vx2_upup, double *vx2_dndn, double *vx2_updn, double *vx2_dnup);
+  static void eclyp_sp(double rho_up, double rho_dn,
+    double grad_up2, double grad_dn2, double grad_up_grad_dn,
+    double *ec_up, double *ec_dn, double *vc1_up, double *vc1_dn,
+    double *vc2_upup, double *vc2_dndn, double *vc2_updn, double *vc2_dnup);
+
   bool isGGA() const { return true; };
   std::string name() const { return "BLYP"; };
   void setxc(void);