On Friday, 5 October 2018 at 19:31:56 UTC, Jon Degenhardt wrote:
On Friday, 5 October 2018 at 16:34:32 UTC, Paul Backus wrote:
You can thread multiple arguments through to `each` using
`std.range.zip`:
tenRandomNumbers
.zip(repeat(output))
.each!(unpack!((n, output) =>
output.appendln(n.to!string)));
Full code: https://run.dlang.io/is/Qe7uHt
Very interesting, thanks. It's a clever way to avoid the
delegate capture issue.
(Aside: A nested function that accesses 'output' from lexical
context has the same issue as delegates wrt to capturing the
variable.)
Note that this solution may do a lot of output and hence running
of the destructor.
Use: `.zip(repeat(&output))` to avoid that.
