usr/man/cat1/ratfor.0



RATFOR(1)           UNIX Programmer's Manual            RATFOR(1)


N\bNA\bAM\bME\bE
     ratfor - rational Fortran dialect

S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS
     r\bra\bat\btf\bfo\bor\br [ option ... ] [ filename ... ]

D\bDE\bES\bSC\bCR\bRI\bIP\bPT\bTI\bIO\bON\bN
     _\bR_\ba_\bt_\bf_\bo_\br converts a rational dialect of Fortran into ordinary
     irrational Fortran.  _\bR_\ba_\bt_\bf_\bo_\br 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

     _\bR_\ba_\bt_\bf_\bo_\br is best used with _\bf_\b7_\b7(1).


Printed 7/9/88           April 29, 1985                         1


RATFOR(1)           UNIX Programmer's Manual            RATFOR(1)


S\bSE\bEE\bE A\bAL\bLS\bSO\bO
     f77(1)
     B. W. Kernighan and P. J. Plauger, _\bS_\bo_\bf_\bt_\bw_\ba_\br_\be _\bT_\bo_\bo_\bl_\bs, Addison-
     Wesley, 1976.


Printed 7/9/88           April 29, 1985                         2