First version of automatic ID and COUNT columns, to discuss (for now,

columns created when NUC_SEQ views are closed if the columns don't
already exist)

src/utils.h

@@ -17,6 +17,7 @@
 #include <sys/stat.h>
 
 #include "obidms.h"
+#include "obitypes.h"
 
 
 #define FORMATTED_TIME_LENGTH (1024)    /**< The length allocated for the character string containing a formatted date.
@@ -25,6 +26,35 @@
                                 	   	 */
 
 
+/**
+ * @brief Counts the number of digits of a number.
+ *
+ * @param i The number.
+ *
+ * @returns The number of digits of the number.
+ *
+ * @since July 2017
+ * @author Celine Mercier (celine.mercier@metabarcoding.org)
+ */
+int digit_count(index_t i);
+
+
+/**
+ * @brief Builds a word from a prefix and an index, with the form prefix_index.
+ *
+ * @warning The returned pointer has to be freed by the caller.
+ *
+ * @param prefix The prefix for the word.
+ * @param idx The index to use as suffix.
+ *
+ * @returns The built word.
+ *
+ * @since July 2017
+ * @author Celine Mercier (celine.mercier@metabarcoding.org)
+ */
+char* build_word_with_idx(const char* prefix, index_t idx);
+
+
 /**
  * @brief Counts the number of files and directories in a directory.
  *