On Tuesday, 3 June 2014 at 05:40:44 UTC, Edwin van Leeuwen wrote:
On Monday, 2 June 2014 at 23:44:01 UTC, Rene Zwanenburg wrote:
On Monday, 2 June 2014 at 20:09:12 UTC, Edwin van Leeuwen
wrote:
As you may have guessed, a workaround is to copy the iteration
variable yourself:
unittest {
size_t delegate()[size_t] events;
foreach(_i; 1..4 ) {
auto i = _i;
events[i] = { return i; };
}
assert( events[1]() == 1 );
}
This should work though it's less than ideal. There is an open
bug report:
https://issues.dlang.org/show_bug.cgi?id=8621
Thanks for the suggestion and I just tried it, but it does not
work :(
In the original code were I discovered this problem I generated
the id with an outside function and that also didn't to work.
unittest {
size_t delegate()[size_t] events;
size_t i = 1;
events[i] = { return i; };
i = 2;
events[i] = { return i; };
i = 3;
events[i] = { return i; };
writeln( events[1]() );
assert( events[1]() == 1 );
}
Explicitly removing the loop still causes the same issue. In that
case I find it easier to understand, since it might be using the
value of i at the end of the scope. In the foreach case (and
especially when copying to a local variable) it is more puzzling
to me.
