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FORTRAN-80
FORTRAN Concepts
The following statement returns whenever the two logical operands are logically
equivalent.
IF
(FLAG1
.EQV.
FLAG2)
RETURN
The
value when two logical
operands
are combined by
.NEQV.
is
as follows:
OP1
OP2
OP1
.NEQV. OP2
TRUE
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
TRUE
TRUE
FALSE
FALSE FALSE
If
both
operands are logically different, the logical expression
is
true.
The
following statement continues execution
if
the two operands are
not
equivalent.
IF
(FLAG1
.NEQV.
FLAG2)
CONTINUE
2.2.4.6
Precedence
of
Operators.
Expressions are generally evaluated left
to
right.
Operators
with higher precedence
are evaluated before
other
operators
that
immediately precede
or
follow them.
When
two operators have equal precedence, the leftmost
is
evaluated first.
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