[daip] Re: compiler gnu gcc 3.4.2

[Michael Rupen]

Hi Eric,
  I can't believe you were able to track down something so subtle, so
quickly...many thanks.  I've re-installed AIPS here using gcc 2.95.3,
and just for fun re-ran the Y2K test.  It's a little slower (AIPS mark of 100) 
and more accurate (all accuracies are better, with mode 'T' being up to 1.4 
bits better [on IMCLN]).

  IMEAN now works as expected.

  Cheers,

           Michael

On Fri, 15 Oct 2004, Eric Greisen wrote:

> When in debug or in optimize
> 
> $APLSUB/ENORM.FOR
> 
> C
>       INTEGER   I
>       DOUBLE PRECISION AGIANT, FLOATN, RDWARF, RGIANT, S1, S2,
>      *   S3, XABS, X1MAX, X3MAX, ZERO, ONE
>       DATA ONE, ZERO, RDWARF, RGIANT /1.0D0, 0.0D0, 3.834D-20, 1.304D19/
> C-----------------------------------------------------------------------
> 
> has a value for ONE of 0
> 
> $APLSUB/LMSTR1.FOR
> 
> C
>       INTEGER   MAXFEV, MODE, NFEV, NJEV, NPRINT
>       DOUBLE PRECISION FACTOR, FTOL, GTOL, XTOL, ZERO
>       DATA FACTOR, ZERO /1.0D2, 0.0D0/
> C-----------------------------------------------------------------------
> 
> has a value for FACTOR of 0
> 
> God knows where else this will hit.  The use of DATA here is not
> essential - the latter works when I put a FACTOR = 1.D2 in the regular
> code.  The former worked when I used gdb to set ONE to 1.D0.
> 
> Can you forward this to your gnu friends?  Their parser is failing.
> 
> Eric Greisen
>