Re: Strange FORTRAN IV to F77 conversion occurrence

On Sat, 01 Nov 2008 08:55:34 -0400, user1 wrote:

George wrote:
On Fri, 31 Oct 2008 10:44:44 -0400, user1 wrote:

George wrote:
On Thu, 30 Oct 2008 23:09:48 -0700 (PDT), Terence wrote:

I was re-writing/converting some old statistics routines, which after
getting one to work again (sort of), I decided to change all the
Hollerith text to apostrophied text ( "for the future")
.
On compiling and running with my test data I found that the screen
showed all the expected "stuff" but the output disk file written the
same way(for optional printing), at the same time, stopped writting to
disk, with no error signalled at this point in the program, although
the screen continued happily.
All previous lines were written to disk but none after the one before
this one below:-

This was the code where the problem was determined to becaused by the
mix of the apostrophy delimited text with the remaining Holerith
part.

WRITE(0,8001) SIG
WRITE(6,8001) SIG
8001 FORMAT(//,' SIGNIFICANCE LEVEL =',F7.4,
1 21H ONE-SIDED AT THE LEFT)

The problem disappeared on replacing the last line with
1 ' ONE-SIDED AT THE LEFT')

It seems something set a switch to make the output file a nul file
suddenly.
Adding this to my 'gotcha' list!
I wouldn't miss this list if you published it.
Do you expect to someday make the same mistake with the same obsolete
compiler ?

For whatever I've had to do with older versions of fortrans, I've found as
many gotchas as I've had time for. Since Terence can actually get results
with these tools, I would figure that his list of "thou shalt not's" would
be very much worth the having.


I'm waiting for the OP to hit some sort of 64k segment limit, DGROUP overflow,
or similar with that rusty old compiler he is using ...

But imagine the stuff you'll be talking about when you're 72.

1) Having had fixed form in college.
2) Fortran without allocate.
3) PDT's stumping everyone.
4) Presidents that had less than a commodore 64's brainpower.
5) A Mars landers that proved that feet and meters are different.
6) Winning elections by pushing the Diebold button.
--
George

Our Nation must defend the sanctity of marriage.
George W. Bush

Picture of the Day http://apod.nasa.gov/apod/
.

Relevant Pages

  • Re: Strange FORTRAN IV to F77 conversion occurrence
    ... showed all the expected "stuff" but the output disk file written the ... mix of the apostrophy delimited text with the remaining Holerith ... I'm waiting for the OP to hit some sort of 64k segment limit, DGROUP overflow, or similar with that rusty old compiler he is using ... ...
    (comp.lang.fortran)
  • Re: Hiring Advice
    ... routine as I like seeing how the various higher level language constructs ... The problem I find with reviewing generated code is the compiler ... That's sort of like believing something just because you read it ... in which I was used to vendors producing very high quality code (and ...
    (comp.arch.embedded)
  • Re: A few quick questions about gfortran under cygwin
    ... >> Downloaded the windows version and it actually works - sort of. ... >> Gfortran did compile about 6k lines of that I threw at it. ... "pretty much anything anyone tries to throw at the compiler". ...
    (comp.lang.fortran)
  • Re: object system...
    ... violating the rule that a debugger should be able to monitor the lvalue ... compiler that does that sort of optimization is not a valid C compiler ... situations *after* a problem arises because full optimization violates the ... some sort of simplification. ...
    (comp.object)
  • Re: max size of ptr array
    ... The problem is that I get a stack overflow error when I do a quick sort ... you'll get a compiler error. ... int main{ ... And since an int requires 4 "bytes" plus the fact that your array is ...
    (microsoft.public.vc.language)