fixed typos and other minor things

src/obierrno.h

@@ -11,26 +11,54 @@
 /**
  * @brief The declaration of the external variable `obi_errno`.
  *
- * `obi_errno` is an equivalent of `errno` for the system level error
- * but for for error generated by the C layer of the OBITools framework.
+ * `obi_errno` is an equivalent of `errno` for the system level error,
+ * but for errors generated by the C layer of the OBITools framework.
  *
- * @todo We have to look for defining this variable as thread specific.
+ * @todo We have to look into defining this variable as thread specific.
  */
 extern int obi_errno;
 
+
 /**
- * @brief set the global `obi_errno` variable with
+ * @brief Sets the global `obi_errno` variable with
  *        the specified `err` code
  *
  * This function is defined as a macro to reduce the risk
- * to increase the problem generating the error by calling
+ * of increasing the problem generating the error by calling
  * a new function.
  *
- * @param err the error code as an integer value
+ * @param err The error code as an integer value.
  *
  * @since May 2015
  * @author Eric Coissac (eric.coissac@metabarcoding.org)
  */
 #define obi_set_errno(err) (obi_errno = (err))
 
+
+/**
+ * @defgroup OBIDMSErrors OBIDMS related error codes
+ *
+ * Error codes set in errno following an error related
+ * to the manipulation of an OBIDMS.
+ *
+ * @{
+ */
+#define OBIDMS_EXIST_ERROR     (1) /**< Trying to create an OBIDMS with a name
+                                    *   that corresponds to an existing OBIDMS
+                                    */
+#define OBIDMS_NOT_EXIST_ERROR (2) /**< Trying to open a non-existing OBIDMS
+                                    */
+#define OBIDMS_LONG_NAME_ERROR (3) /**< The specified OBIDMS name is too long
+                                    */
+#define OBIDMS_MEMORY_ERROR    (4) /**< A memory error occurred during allocation
+                                    */
+#define OBIDMS_UNKNOWN_ERROR   (5) /**< Undetermined error
+                                    */
+#define OBIDMS_ACCESS_ERROR    (6) /**< Permission error trying to access the database
+                                    */
+#define OBIDMS_BAD_ENDIAN_ERROR (7) /**< The opened data structure does not corresponds
+                                     *   to the endianess of the platform.
+                                     */
+/**@}*/
+
 #endif /* OBIERRNO_H_ */