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From: mcqueen@acf3.NYU.EDU (David McQueen)
Newsgroups: comp.lang.fortran
Subject: bug in IRIS f77 list-directed i/o
Message-ID: <1600002@acf3.NYU.EDU>
Date: 12 Apr 91 13:31:00 GMT
Sender: notes@cmcl2.nyu.edu (Notes Person)
Organization: New York University
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We have observed what we think is improper behavior of list-directed i/o in a
Fortran program on our Personal IRIS running IRIX 3.3.1.

Running the following program on our Personal IRIS:
 
      a = 0.0
      b = 0.0
      c = 0.0
      read(5,*,err=99) a,b,c
      write(6,*) a,b,c
      stop
   99 write(6,*)'error reading data'
      stop
      end

with an input file which consists of a single line:
1 2 3
elicits the (good) result:

    1.000000       2.000000       3.000000

but running with an input file consisting of the line:
x y z
elicits the (we think bad) result:

   0.0000000E+00  0.0000000E+00  0.0000000E+00

On a Sun 3/50 running SunOS 4.1 we obtain for the above two cases respectively

    1.00000    2.00000    3.00000

and

error reading data

which we think makes more sense.

Is this behavior of the Personal IRIS in accordance with standard Fortran?

--David McQueen, Courant Institute, New York University