Overloads ieee_is_nan to test whether every column value is NaN.
This is an all-elements query, not a test for the presence of any NaN.
| Type | Intent | Optional | Attributes | Name | ||
|---|---|---|---|---|---|---|
| class(real_column), | intent(in) | :: | x |
The real_column to inspect, without copying its array. |
True if all values are NaN, including an allocated empty array; false for unallocated storage.