[Issue 9822] cartesianProduct broken for array literals

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=9822


bearophile_hugs at eml.cc changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |bearophile_hugs at eml.cc


--- Comment #1 from bearophile_hugs at eml.cc 2013-03-27 10:44:04 PDT ---
A reduction:


struct MapResult(alias fun) {
    int[] _input;

    @property bool empty() {
        return _input.length == 0;
    }

    void popFront() {
        _input = _input[1 .. $];
    }

    @property auto ref front() {
        return fun(1);
    }
}

auto map(alias fun)(int[] r) {
    return MapResult!(fun)(r);
}

auto foo(int[] r) {
    return map!(x => r)([1]);
}

enum r1 = [1];
auto result = foo(r1);

void main() {
    foreach (t; result) {}
}

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