I don't know under which circumstances this can error (other than a broken format string). It seems it won't return an error code on I/O errors, so maybe broken format strings are the only case. Either way, don't continue if an error is returned.
I don't know under which circumstances this can error (other than a broken format string). It seems it won't return an error code on I/O errors, so maybe broken format strings are the only case. Either way, don't continue if an error is returned.