Added a C function to add a COUNT column to a view with all lines set to

1

src/obiview.h

@@ -51,6 +51,9 @@
                                 	 	  	  	 */
 #define QUALITY_COLUMN "QUALITY"				/**< The name of the column containing the sequence qualities
  	 	 	 	 	 	 	 	 	 	 	 	 *   in NUC_SEQS_VIEW views.
+                                	 	  	   	 */
+#define COUNT_COLUMN "COUNT"				    /**< The name of the column containing the sequence counts
+ 	 	 	 	 	 	 	 	 	 	 	 	 *   in NUC_SEQS_VIEW views.
                                 	 	  	  	 */
 
 
@@ -507,6 +510,23 @@ int obi_select_lines(Obiview_p view, index_t* line_nbs);
 int obi_save_and_close_view(Obiview_p view);
 
 
+/**
+ * @brief Creates an OBI_INT column with the line count of the view it belongs to, and sets all lines to 1.
+ *
+ * @warning The number of lines set corresponds to the line count of the view.
+ *
+ * @param view A pointer on the view.
+ *
+ * @returns A value indicating the success of the operation.
+ * @retval 0 if the operation was successfully completed.
+ * @retval -1 if an error occurred.
+ *
+ * @since July 2017
+ * @author Celine Mercier (celine.mercier@metabarcoding.org)
+ */
+int obi_create_auto_count_column(Obiview_p view);
+
+
 /**
  * @brief Recovers an obiblob from an OBIDMS column containing indices referring to obiblobs,
  *        using the index of the element in the line, and the column pointer, in the context of a view.