This section describes how the data-sharing attributes of variables referenced in data environments are
determined. The following two cases are described separately:
Section 5.1.1
describes
the
data-sharing
attribute
rules
for
variables
referenced
in
a
construct.
Section 5.1.2
describes
the
data-sharing
attribute
rules
for
variables
referenced
in
a
region,
but
outside
any
construct.