From efa81139369836056f2409f8422e6a87747058c4 Mon Sep 17 00:00:00 2001
From: Magnus Lundborg <lundborg.magnus@gmail.com>
Date: Thu, 28 Nov 2013 11:28:51 +0100
Subject: Fixing bug when copying molecules.


diff --git a/src/lib/tng_io.c b/src/lib/tng_io.c
index 2a8979e..fc7c574 100644
--- a/src/lib/tng_io.c
+++ b/src/lib/tng_io.c
@@ -7337,15 +7337,14 @@ tng_function_status DECLSPECDLLEXPORT tng_molecule_system_copy(tng_trajectory_t
 
     tng_data_dest->n_molecules = tng_data_src->n_molecules;
 
-    molecule_temp = realloc(tng_data_dest->molecules,
-                    sizeof(struct tng_molecule) * tng_data_dest->n_molecules);
-    if(!molecule_temp)
+    free(tng_data_dest->molecules);
+
+    tng_data_dest->molecules = malloc(sizeof(struct tng_molecule) * tng_data_dest->n_molecules);
+    if(!tng_data_dest->molecules)
     {
         printf("TNG library: Cannot allocate memory (%"PRId64" bytes). %s: %d\n",
                sizeof(struct tng_molecule) * tng_data_dest->n_molecules,
                __FILE__, __LINE__);
-        free(tng_data_dest->molecules);
-        tng_data_dest->molecules = 0;
         return(TNG_CRITICAL);
     }
     list_temp = realloc(tng_data_dest->molecule_cnt_list,
-- 
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