Fortran - Re: Turning compiler optimizations off causes segmentation fault

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Re: Turning compiler optimizations off causes segmentation fault

glen herrmannsfeldt

2004-06-10, 3:58 pm

Richard Maine wrote:

(big snip)

> But remember that X *IS* (aliased to anyway) the up pointer in node 2.
> Thus the above statement nullifies X, behind your back as it were.
> Aliasing is tricky that way. Thus your following x%p is suddenly
> invalid.

> I think that what you want is, in the call to the rotate routine,
> pass a temporary pointer instead of x%p%p. I.E instead of

> CALL LeftRotateRBTree(Tree, x%p%p)

> do

> y => x%p%p
> CALL LeftRotateRBTree(Tree, y)

I wonder if this is a translation of a C program, with the
call by value method of passing arguments.

-- glen

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