home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
IRIX Base Documentation 1998 November
/
IRIX 6.5.2 Base Documentation November 1998.img
/
usr
/
share
/
catman
/
u_man
/
cat1
/
ratfor.z
/
ratfor
Wrap
Text File
|
1998-10-30
|
2KB
|
133 lines
RRRRAAAATTTTFFFFOOOORRRR((((1111)))) RRRRAAAATTTTFFFFOOOORRRR((((1111))))
NNNNAAAAMMMMEEEE
ratfor - rational FORTRAN dialect
SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
rrrraaaattttffffoooorrrr [ option ... ] [ filename ... ]
DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
_R_a_t_f_o_r converts a rational dialect of FORTRAN into ordinary irrational
FORTRAN. _R_a_t_f_o_r 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)
returns expression to caller from function
define:
define name replacement
include:
include filename
PPPPaaaaggggeeee 1111
RRRRAAAATTTTFFFFOOOORRRR((((1111)))) RRRRAAAATTTTFFFFOOOORRRR((((1111))))
_R_a_t_f_o_r is best used with _f_7_7(1).
SSSSEEEEEEEE AAAALLLLSSSSOOOO
f77(1)
B. W. Kernighan and P. J. Plauger, _S_o_f_t_w_a_r_e _T_o_o_l_s, Addison-Wesley, 1976.
PPPPaaaaggggeeee 2222