Columns are now enlarged if needed when setting a value

src/obidmscolumn.h

@@ -27,6 +27,8 @@
 
 #define ELEMENTS_NAMES_MAX (2048)
 #define INITIAL_LINE_COUNT (1000)
+#define GROWTH_FACTOR (2)
+#define MAXIMUM_LINE_COUNT (1000000)
 
 
 typedef int32_t obiversion_t; 	/**< Used to store the column version number
@@ -205,6 +207,20 @@ int obi_close_column(OBIDMS_column_p column);
 int obi_truncate_column_to_lines_used(OBIDMS_column_p column);
 
 
+/**
+ * @brief Enlarges a column file.
+ *
+ * @param column a pointer on an OBIDMS column
+ *
+ * @return 0 if the operation was successfully completed
+ * @return -1 if an error occurred
+ *
+ * @since August 2015
+ * @author Celine Mercier (celine.mercier@metabarcoding.org)
+ */
+int obi_enlarge_column(OBIDMS_column_p column);
+
+
 /**
  * @brief Truncates a column file to the number of lines used and closes it.
  *
@@ -219,6 +235,19 @@ int obi_truncate_column_to_lines_used(OBIDMS_column_p column);
 int obi_truncate_and_close_column(OBIDMS_column_p column);
 
 
+/*
+ * @brief Sets the data in a column to the NA value of the data type.
+ *
+ * @param column a pointer on an OBIDMS column
+ * @param start the first line number of the block that should be set
+ * @param nb_lines the number of lines that should be set
+ *
+ * @since August 2015
+ * @author Celine Mercier (celine.mercier@metabarcoding.org)
+ */
+void obi_ini_to_NA_values(OBIDMS_column_p column, size_t start, size_t nb_lines);
+
+
 /**
  * @brief Sets the 'writable' header attribute of an OBIDMS column to False.
  *