Document the new function in space.c

examples/main_fof.c

@@ -511,8 +511,7 @@ int main(int argc, char *argv[]) {
   space_init(&s, params, &cosmo, dim, parts, gparts, sparts, bparts, Ngas,
              Ngpart, Nspart, Nbpart, periodic, replicate,
              /*generate_gas_in_ics=*/0, /*hydro=*/N_total[0] > 0, /*gravity=*/1,
-             /*with_star_formation=*/0, with_DM_background_particles,
-             /*with_dithering=*/0, /*dithering_ratio=*/0., talking,
+             /*with_star_formation=*/0, with_DM_background_particles, talking,
              /*dry_run=*/0);
 
   if (myrank == 0) {

src/space.c

@@ -1141,6 +1141,13 @@ void space_allocate_extras(struct space *s, int verbose) {
   free(local_cells);
 }
 
+/**
+ * @brief Compute a new dithering vector to apply to all the particles
+ * in the simulation.
+ *
+ * @param s The #space.
+ * @param verbose Are we talkative?
+ */
 void space_dither(struct space *s, int verbose) {
 
   /* Store the old dithering vector */