C: Columns: rounding column growth to ceil to avoid looping on small

values

src/obidmscolumn.c

@@ -1973,7 +1973,7 @@ int obi_enlarge_column(OBIDMS_column_p column)
 
 	// Calculate the new file size
 	old_line_count = (column->header)->line_count;
-	new_line_count = old_line_count * COLUMN_GROWTH_FACTOR;
+	new_line_count = ceil((double) old_line_count * (double) COLUMN_GROWTH_FACTOR);
 
 	if (new_line_count > MAXIMUM_LINE_COUNT)
 	{
@@ -2381,6 +2381,54 @@ char* obi_get_elements_names(OBIDMS_column_p column)
 }
 
 
+char* obi_get_formatted_elements_names(OBIDMS_column_p column)
+{
+	char* elements_names;
+	int   i, j;
+	int   elt_idx;
+	int   len;
+
+	elements_names = (char*) malloc(((column->header)->elements_names_length + (column->header)->nb_elements_per_line) * sizeof(char));
+	if (elements_names == NULL)
+	{
+		obi_set_errno(OBI_MALLOC_ERROR);
+		obidebug(1, "\nError allocating memory for elements names");
+		return NULL;
+	}
+
+	j = 0;
+	for (i=0; i < (column->header)->nb_elements_per_line; i++)
+	{
+		elt_idx = ((column->header)->elements_names_idx)[i];
+		len = strlen(((column->header)->elements_names)+elt_idx);
+		memcpy(elements_names+j, ((column->header)->elements_names)+elt_idx, len*sizeof(char));
+		j = j + len;
+		elements_names[j] = ';';
+		j++;
+		elements_names[j] = ' ';
+		j++;
+	}
+
+	elements_names[j - 1] = '\0';
+
+	return elements_names;
+}
+
+
+char* obi_column_formatted_infos(OBIDMS_column_p column)
+{
+	char* column_infos;
+	char* elt_names;
+
+	column_infos = malloc(1024 * sizeof(char));
+
+	elt_names = obi_get_formatted_elements_names(column);
+
+
+	free(elt_names);
+	return column_infos;
+}
+
 
 int obi_column_prepare_to_set_value(OBIDMS_column_p column, index_t line_nb, index_t elt_idx)
 {