/* -*- c++ -*- ---------------------------------------------------------- LAMMPS - Large-scale Atomic/Molecular Massively Parallel Simulator http://lammps.sandia.gov, Sandia National Laboratories Steve Plimpton, sjplimp@sandia.gov Copyright (2003) Sandia Corporation. Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government retains certain rights in this software. This software is distributed under the GNU General Public License. See the README file in the top-level LAMMPS directory. ------------------------------------------------------------------------- */ #ifdef FIX_CLASS FixStyle(nvk,FixNVK) #else #ifndef LMP_FIX_NVK_H #define LMP_FIX_NVK_H #include "fix.h" namespace LAMMPS_NS { class FixNVK : public Fix { public: FixNVK(class LAMMPS *, int, char **); virtual ~FixNVK() {} int setmask(); virtual void init(); virtual void initial_integrate(int); virtual void final_integrate(); virtual void initial_integrate_respa(int, int, int); virtual void final_integrate_respa(int, int); virtual void reset_dt(); protected: double dtv,dtf; double *step_respa; int mass_require; double K_target; }; } #endif #endif /* ERROR/WARNING messages: E: Illegal ... command Self-explanatory. Check the input script syntax and compare to the documentation for the command. You can use -echo screen as a command-line option when running LAMMPS to see the offending line. */