Unhelpful MINLOC/MAXLOC documentation

In the documentation for MINLOC and MAXLOC is the statement

"If array has size zero, or every element of mask has the value .FALSE., the value of the result is controlled by compiler option assume [no]old_maxminloc, which can set the result to either 1 or 0."

In this case, it is unclear to me when to expect a value of 1 or 0, and there are no examples given for this situation.

Am I correct in interpreting this that default compiler option is assume old_maxminloc, and the result is then 1, but with assume noold_maxminloc the result will be zero?

Thanks,

David