- The function new_item allocates a new item and initializes
- it from the name and description pointers. Please notice
- that the item stores only the pointers to the name and
- description. Those pointers must be valid during the life-
- time of the item. So you should be very careful with names
- or descriptions allocated on the stack of some routines.
- The function free_item de-allocates an item. Please notice
- that it is the responsibility of the application to
- release the memory for the name or the description of the
- item.
+
+ The function new_item allocates a new item and initializes it from the
+ name and description pointers. Please notice that the item stores only
+ the pointers to the name and description. Those pointers must be valid
+ during the lifetime of the item. So you should be very careful with
+ names or descriptions allocated on the stack of some routines.
+ The function free_item de-allocates an item. Please notice that it is
+ the responsibility of the application to release the memory for the
+ name or the description of the item.
-
+ The function new_item returns NULL on error. It sets errno according
+ to the function's failure:
+
+ E_BAD_ARGUMENT
+ Routine detected an incorrect or out-of-range argument.
+
+ E_SYSTEM_ERROR
+ System error occurred, e.g., malloc failure.
The function free_item returns one of the following:
E_OK The routine succeeded.
- E_SYSTEM_ERROR
- System error occurred (see errno).
-
E_BAD_ARGUMENT
- Routine detected an incorrect or out-of-range argu-
- ment.
+ Routine detected an incorrect or out-of-range argument.
E_CONNECTED
Item is connected to a menu.
+ E_SYSTEM_ERROR
+ System error occurred (see errno(3)).
-