Write one logical field in cfg by schema key.
| Type | Intent | Optional | Attributes | Name | ||
|---|---|---|---|---|---|---|
| type(config_t), | intent(inout) | :: | cfg | |||
| character(len=*), | intent(in) | :: | key | |||
| logical, | intent(in) | :: | value | |||
| logical, | intent(out), | optional | :: | is_ok | ||
| character(len=*), | intent(out), | optional | :: | message |