Added tng_util_num_frames_with_data_of_block_id_get()

The function already existed in the tng_io.c, but has now
been exposed through the API. Basic code for testing it was
added as well.

Version bumped to 1.7.0

Change-Id: Ia276ce3c7c9225f5d0d07eb6e3cd4cea6b882d24

1 files changed, 13 insertions, 0 deletions

diff --git a/include/tng/tng_io.h b/include/tng/tng_io.h
index 367aa29..de4dd32 100644
--- a/include/tng/tng_io.h
+++ b/include/tng/tng_io.h
@@ -4877,6 +4877,19 @@ tng_function_status DECLSPECDLLEXPORT tng_util_prepare_append_after_frame
                 (tng_trajectory_t tng_data,
                  const int64_t prev_frame);
 
+
+/** @brief Get the number of frames containing data of a specific type.
+ * @param tng_data is the trajectory to use.
+ * @param block_id is the id of the block of the data type.
+ * @param n_frames is set to the number of frames containing data of
+ * the requested data type.
+ * @return TNG_SUCCESS (0) if successful or TNG_CRITICAL (2) if a major
+ * error has occured.
+ */
+tng_function_status DECLSPECDLLEXPORT tng_util_num_frames_with_data_of_block_id_get
+                (tng_trajectory_t tng_data,
+                 const int64_t block_id,
+                 int64_t *n_frames);
 /** @} */ /* end of group2 */