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I have a old fortran code that I try to update. The arrays were given in subroutines with the old style:

double precison A(*)

I wanted to changed it to f90 norm:

double precison A(:)

But I get seg fault by doing so. In the main the array isdeclared as:

double precision:: A(size)

why can't I change the way of declaring the arr`y in the subroutine?

Thanks

Laetis
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  • Please show a full program that displays the problem. Guess: You haven't got an interface in scope at the calling point, but without the code it remains a guess. – Ian Bush Nov 09 '20 at 10:05
  • indeed I don't have an interface, I was wondering if it could be that to. I'll try with one – Laetis Nov 09 '20 at 10:07
  • Assumed shape array dummy arguments ( what you are calling "implicit size" ) require an interface to be in scope at the calling point. This is one reason why you should stick all routines in modules – Ian Bush Nov 09 '20 at 10:12
  • agreed. and indeed it was that. thanks – Laetis Nov 09 '20 at 10:18

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