expose numetical version id to library and python interface

python/lammps.py

@@ -70,6 +70,9 @@ class lammps:
     if self.opened: self.lib.lammps_close(self.lmp)
     self.lmp = None
 
+  def version(self):
+    return self.lib.lammps_version(self.lmp)
+
   def file(self,file):
     self.lib.lammps_file(self.lmp,file)
 

src/library.cpp

@@ -19,6 +19,7 @@
 #include "stdlib.h"
 #include "library.h"
 #include "lammps.h"
+#include "universe.h"
 #include "input.h"
 #include "atom.h"
 #include "domain.h"
@@ -79,6 +80,16 @@ void lammps_close(void *ptr)
   delete lmp;
 }
 
+/* ----------------------------------------------------------------------
+   get the numerical representation of the current LAMMPS version
+------------------------------------------------------------------------- */
+
+int lammps_version(void *ptr)
+{
+  LAMMPS *lmp = (LAMMPS *) ptr;
+  return atoi(lmp->universe->num_ver);
+}
+
 /* ----------------------------------------------------------------------
    process an input script in filename str
 ------------------------------------------------------------------------- */

src/library.h

@@ -27,6 +27,7 @@ extern "C" {
 void lammps_open(int, char **, MPI_Comm, void **);
 void lammps_open_no_mpi(int, char **, void **);
 void lammps_close(void *);
+int  lammps_version(void *);
 void lammps_file(void *, char *);
 char *lammps_command(void *, char *);
 void lammps_free(void *);