From f86e1f7762e5fc3326015d04281cfca483467936 Mon Sep 17 00:00:00 2001
From: Magnus Lundborg <lundborg.magnus@gmail.com>
Date: Wed, 4 Dec 2013 15:25:37 +0100
Subject: Improved handling of non-existing blocks.


diff --git a/src/lib/tng_io.c b/src/lib/tng_io.c
index ec6298a..df10c14 100644
--- a/src/lib/tng_io.c
+++ b/src/lib/tng_io.c
@@ -18149,12 +18149,16 @@ tng_function_status DECLSPECDLLEXPORT tng_util_trajectory_next_frame_present_dat
         {
             stat = tng_frame_set_read_current_only_data_from_block_id(tng_data,
                                                                       TNG_USE_HASH, block_id);
-            if(stat != TNG_SUCCESS)
+            if(stat == TNG_CRITICAL)
             {
                 printf("Cannot read data block of frame set. %s: %d\n",
                     __FILE__, __LINE__);
                 return(stat);
             }
+            if(stat == TNG_FAILURE)
+            {
+                continue;
+            }
         }
         if(np_data->last_retrieved_frame >= 0)
         {
-- 
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