Re: Capturing a variable by value?

[Basile B. via Digitalmars-d-learn]

On Wednesday, 3 February 2016 at 18:09:52 UTC, ZombineDev wrote:
I think these two links, more or less, answer my question:
http://stackoverflow.com/questions/29759419/closures-in-loops-capturing-by-reference
https://issues.dlang.org/show_bug.cgi?id=2043

Another approach:

import std.range, std.array, std.stdio;

struct InputRangeHook(T, alias Fun)
if (isInputRange!T)
{
    private T _t;
    this(T t)
    {
        _t = t;
    }
    void popFront()
    {
        Fun(front());
        _t.popFront;
    }
    bool empty()
    {
        return _t.empty();
    }
    auto front()
    {
        return _t.front;
    }
}

void main()
{
    foreach(i; InputRangeHook!(int[],(a) {write(a," 
");})(iota(0,10).array)){}
}