If I want randInPlace to take value arguments (such as structs)
by reference and reference types (classes) as normal is this
/** Generate Random Contents in $(D x).
*/
auto ref randInPlace(T)(auto ref T x) @safe /* nothrow */ if
(isIterable!T)
{
foreach (ref elt; x)
{
import std.range: ElementType;
static if (isInputRange!(ElementType!T))
elt[].randInPlace;
else
elt.randInPlace;
}
return x;
}
the way to do it or does
auto ref T x
evaluate to unnecessary
ref Class x
?
And isIterable the recommended way to do it?
And how does this compare to using x[].randInPlace() when x is a
static array? Does x[] create unnecessary GC-heap activity in
this case?
I'm wondering because (auto ref T x) is just used in two places
in std.algorithm and std.range in Phobos. Is this a relatively
new enhancement?
