Hi Jens -
Good to hear from you. The semantics of forall loops changed
in version 1.11 -- see
http://chapel.cray.com/docs/master/language/evolution.html#forall-intents
In particular, with your example
>$ cat main.chpl
>config const n = 100000;
>
>
>proc main() {
> var temp : int = 0;
> temp = 1;
> forall i in {1..n} do {
> if (i == 0) {
> temp = 1;
> }
> }
>
>
> writeln("temp = ", temp);
>}
you would have to write it this way
forall i in 1..n with (ref temp) {
}
to write that program since the default is to
copy integer variables into a forall loop (so
that they are read-only (rvalues) within the
loop).
Note also that the do before a curly brace
(as in for i in 1..10 do { )
and the curly braces around the 1..n
(as in for i in {1..10} )
are unnecessary. I tried to write the forall
loop in better style in my example above.
Cheers,
-michael
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