ratfor(1)
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ratfor Command
rational FORTRAN dialect
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SYNTAX
ratfor [ options ] [ files ]
DESCRIPTION
Ratfor converts a rational dialect of FORTRAN into ordinary
irrational FORTRAN. Ratfor provides control flow constructs
essentially identical to those in C:
statement grouping:
{ statement; statement; statement }
decision-making:
if (condition) statement [ else statement ]
switch (integer value) {
case integer: statement
...
[ default: ] statement
}
loops:
while (condition) statement
for (expression; condition; expression) statement
do limits statement
repeat statement [ until (condition) ]
break
next
and some syntactic sugar to make programs easier to read and
write:
free form input:
multiple statements/line; automatic continuation
comments:
# this is a comment.
translation of relationals:
>, >=, etc., become .GT., .GE., etc.
return expression to caller from function:
return (expression)
DG/UX 4.00 Page 1
Licensed material--property of copyright holder(s)
ratfor(1)
define:
define name replacement
include:
include file
The option -h causes quoted strings to be turned into 27H
constructs. The -C option copies comments to the output and
attempts to format it neatly. Normally, continuation lines are
marked with a & in column 1; the option -6x makes the
continuation character x and places it in column 6.
Ratfor is best used with f77(1).
SEE ALSO
f77(1).
B. W. Kernighan and P. J. Plauger, Software Tools, Addison-
Wesley, 1976.
DG/UX 4.00 Page 2
Licensed material--property of copyright holder(s)