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import std.array;
import std.conv;
import std.path;

void main()
{
    // ng: toImpl template instance failure
    string[] x = to!(string[])(pathSplitter("/foo/bar"));

    // ng: can't convert const(char[])[] => string[]
    string[] y = pathSplitter("/foo/bar").array;

    // ng: toImpl template instance failure
    const(char[])[] z = to!(const(char[])[])(pathSplitter("/foo/bar"));
}
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I'm not sure why .array returns const(char[])[] instead of const(char)[][]. Either way, to!() still won't work.