make default settings() functions for bonded interactions error out with arguments

src/angle.cpp

@@ -75,6 +75,16 @@ void Angle::init()
   init_style();
 }
 
+/* ----------------------------------------------------------------------
+   check that there are no arguments
+------------------------------------------------------------------------- */
+
+void Angle::settings(int narg, char **args)
+{
+  if (narg > 0)
+    error->all(FLERR, "Illegal angle_style {} argument: {}", force->angle_style, args[0]);
+}
+
 /* ----------------------------------------------------------------------
    setup for energy, virial computation
    see integrate::ev_set() for bitwise settings of eflag/vflag

src/angle.h

@@ -50,7 +50,7 @@ class Angle : protected Pointers {
   ~Angle() override;
   virtual void init();
   virtual void compute(int, int) = 0;
-  virtual void settings(int, char **) {}
+  virtual void settings(int, char **);
   virtual void coeff(int, char **) = 0;
   virtual void init_style(){};
   virtual double equilibrium_angle(int) = 0;

src/bond.cpp

@@ -86,6 +86,16 @@ void Bond::init()
   init_style();
 }
 
+/* ----------------------------------------------------------------------
+   check that there are no arguments
+------------------------------------------------------------------------- */
+
+void Bond::settings(int narg, char **args)
+{
+  if (narg > 0)
+    error->all(FLERR, "Illegal bond_style {} argument: {}", force->bond_style, args[0]);
+}
+
 /* ----------------------------------------------------------------------
    setup for energy, virial computation
    see integrate::ev_set() for bitwise settings of eflag/vflag

src/bond.h

@@ -53,7 +53,7 @@ class Bond : protected Pointers {
   virtual void init();
   virtual void init_style() {}
   virtual void compute(int, int) = 0;
-  virtual void settings(int, char **) {}
+  virtual void settings(int, char **);
   virtual void coeff(int, char **) = 0;
   virtual double equilibrium_distance(int) = 0;
   virtual void write_restart(FILE *) = 0;

src/dihedral.cpp

@@ -74,6 +74,16 @@ void Dihedral::init()
   init_style();
 }
 
+/* ----------------------------------------------------------------------
+   check that there are no arguments
+------------------------------------------------------------------------- */
+
+void Dihedral::settings(int narg, char **args)
+{
+  if (narg > 0)
+    error->all(FLERR, "Illegal dihedral_style {} argument: {}", force->dihedral_style, args[0]);
+}
+
 /* ----------------------------------------------------------------------
    setup for energy, virial computation
    see integrate::ev_set() for bitwise settings of eflag/vflag

src/dihedral.h

@@ -48,7 +48,7 @@ class Dihedral : protected Pointers {
   virtual void init();
   virtual void init_style() {}
   virtual void compute(int, int) = 0;
-  virtual void settings(int, char **) {}
+  virtual void settings(int, char **);
   virtual void coeff(int, char **) = 0;
   virtual void write_restart(FILE *) = 0;
   virtual void read_restart(FILE *) = 0;

src/improper.cpp

@@ -73,6 +73,16 @@ void Improper::init()
   init_style();
 }
 
+/* ----------------------------------------------------------------------
+   check that there are no arguments
+------------------------------------------------------------------------- */
+
+void Improper::settings(int narg, char **args)
+{
+  if (narg > 0)
+    error->all(FLERR, "Illegal improper_style {} argument: {}", force->improper_style, args[0]);
+}
+
 /* ----------------------------------------------------------------------
    setup for energy, virial computation
    see integrate::ev_set() for bitwise settings of eflag/vflag

src/improper.h

@@ -48,7 +48,7 @@ class Improper : protected Pointers {
   virtual void init();
   virtual void init_style() {}
   virtual void compute(int, int) = 0;
-  virtual void settings(int, char **) {}
+  virtual void settings(int, char **);
   virtual void coeff(int, char **) = 0;
   virtual void write_restart(FILE *) = 0;
   virtual void read_restart(FILE *) = 0;