Question on variable_size and function-at-a-time

Toon Moene toon@moene.indiv.nluug.nl
Wed Apr 14 21:10:00 GMT 2004


Robert Dewar wrote:

> Geoff Keating wrote:
> 
>> I believe it's wrong that we use SAVE_EXPR for array sizes for C.  We
>> should instead create temporary variables to hold the size
>> declarations, and set them in the appropriate point in the instruction
>> stream.
> 
> I agree. In fact my feeling is that we should get rid of the use
> of SAVE_EXPR wherever possible.

That's OK with me, as long as we have a way of expressing that in

       SUBROUTINE SUB(A, N)
       DIMENSION A(N)
       N = N + 1
       DO I = 1, N - 1
          PRINT*, A(I)
       END DO
       PRINT*, N
       END

still works correctly and both

1. Prints A(1 .. original N)
2. Prints original N + 1 at the end.

Hope this helps,

-- 
Toon Moene - mailto:toon@moene.indiv.nluug.nl - phoneto: +31 346 214290
Saturnushof 14, 3738 XG  Maartensdijk, The Netherlands
Maintainer, GNU Fortran 77: http://gcc.gnu.org/onlinedocs/g77_news.html
GNU Fortran 95: http://gcc.gnu.org/fortran/ (under construction)



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