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FORTRAN-SO
Defining Variables
t
Arrayst
And
Memory
Examples:
LOGICAL *2 FLAG
LOGICAL* 1 FLAGS(10)
LOGICAL
*4 FLAG1, FLAG2, SWITCH(5)*1
3.1.4 CHARACTER Type
Statement
The
CHARACTER
type statement has the format:
CHARACTER [* len[,]] name [,name]
...
where
'name'
is
one
of
the forms:
and
v[* len]
ary[(d)][* len]
v
ary
ary(d)
len
is
a variable name
is
an
array
name
is
an
array
declarator
is
the length
(number
of
characters)
of
a character variable
or
character
array
element.
The length specification immediately following the keyword
CHARACTER
applies
to
each item in the statement not having its own length specification. A length
specification immediately following an item
is
the length for
that
item only.
For
an
array, the length applies
to
each array element.
If
no
length
is
specified, the
standard
length
of
a character (one byte)
is
assumed.
Examples:
CHARACTER*15
STRING
CHARACTER*12 NAMES(50), CITIES(50), STATES(50)*5
CHARACTER LETTER
3.1.5 IMPLICIT
Statement
An
IMPLICIT
statement defines the type and length for symbolic names (except in-
trinsic function names)
that
begin with the letter(s) specified by
IMPLICIT.
IM-
PLICIT
types can be overridden, however, by type statements
or
by
an
explicit type
specification in a
FUNCTION
statement. The length specified in
an
IMPLICIT
statement can also be overridden by
an
INTEGER,
LOGICAL,
or
CHARACTER
statement containing the same symbolic name.
3-3