Fan out a success flag and optional message to caller-provided outputs.
| Type | Intent | Optional | Attributes | Name | ||
|---|---|---|---|---|---|---|
| logical, | intent(in) | :: | ok | |||
| character(len=*), | intent(in) | :: | err | |||
| logical, | intent(out), | optional | :: | is_ok | ||
| character(len=*), | intent(out), | optional | :: | message |