Re: variable content lost

When you are using one compiler and getting stuck, its a good idea to
try another one. G95 is free and available on Mac OSX.
Ok, I'll try that on the weekend. But I am just so happy that I setup
my IDE, Makefile and ddd to work together hand in hand ... :)

Are you sure that that all the arrays passed to segment_distance have
dimension 3?
Yes, confirmed that by putting 'print *, fib%r(m,:)' above the
problematic section.

Is the subroutine in a MODULE (which I recommend)?
Yes. All the code quoted here is in the same module which is the only
module in the file.

Can you change the subroutine above to use assumed-shape array arguments
so that it looks like
Done. check says the size is 3.

This might be completely unrelated, but I had trouble earlier with the
values of these arrays. Whenever I tried 'print *, fib%r(m,:)' in my
code the first element of the array changed to sth like 2.932434E-310.
In addition to that I either got 'segmentation fault' or a 'malloc-
exception'. After I changed the print statements to write statements
with explicit format the problem dissapeared ...

.