DEFINITE ASSIGNMENT
The Boolean Operator
? :
16.1.11
V
 is definitely assigned after
a
==
b
 when false iff at least one of the following
is true:
N
V
 is definitely assigned after
b
.
N
V
 is definitely assigned after
a
 when true and
V
 is definitely assigned after
b
when true.
N
V
 is definitely assigned after
a
 when false and
V
 is definitely assigned after
b
when false.
V
 is definitely assigned before
a
 iff
V
 is definitely assigned before
a
==
b
.
V
 is definitely assigned before
b
iff
V
 is definitely assigned after
a
.
16.1.10   The Boolean Operator
!=
The rules for
a
!=
b
 are identical to the rules for
a
^
b
 ( 16.1.8).
16.1.11   The Boolean Operator
? :
Suppose that
b
 and
c
 are boolean valued expressions.
V
 is definitely assigned after
a
?
b
:
c
when true iff both of the following are
true:
N
V
 is definitely assigned before
b
 or
V
 is definitely assigned after
b
 when
true.
N
V
 is definitely assigned before
c
 or
V
 is definitely assigned after
c
 when true.
V
 is definitely assigned after
a
?
b
:
c
when false iff both of the following are
true:
N
V
 is definitely assigned before
b
 or
V
 is definitely assigned after
b
 when
false.
N
V
 is definitely assigned before
c
 or
V
 is definitely assigned after
c
 when
false.
V
 is definitely assigned before
a
 iff
V
 is definitely assigned before
a
?
b
:
c
.
V
 is definitely assigned before
b
iff
V
 is definitely assigned after
a
 when true.
V
 is definitely assigned before
c
iff
V
 is definitely assigned after
a
 when false.
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