Timur Tabi schrieb:
Mike Frysinger wrote:
the documentation currently states that a negative value is permissible and thus "int" is correct. as for the code that actually reads the result, that is by & large common code, so logic along those lines isnt terribly important.
The conclusion I drew from Andy's comments is that functions which initialize more than one device should not return a negative value. That makes sense to me. Perhaps the documentation should be updated to incorporate this idea?
That poses the general question what a function that initializes several devices should do if one of the devices should return an error and what to return if ALL devices return an error. At least in the last case I would assume to return the error code of one of the devices. In the cases where not all, but at least one of the devices get initialized without error, the number of successful devices might be returned. However, in most contexts that might not be helpful to the rest of the system anyway.