August 04
https://issues.dlang.org/show_bug.cgi?id=18268

Jonathan M Davis <issues.dlang@jmdavisProg.com> changed:

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--- Comment #1 from Jonathan M Davis <issues.dlang@jmdavisProg.com> ---
When a template is implicitly instantiated with a dynamic array, the type of the slice of that dynamic array is used (which is tail-const if the dynamic array is const or tail-immutable if it's immutable). It does that so that you don't have to explicitly slice dynamic arrays all over the place when using templated code (though unfortunately, it does mean that dynamic arrays are treated a bit special, since nothing like this happens with other types). Explicitly instantiating a template with a dynamic array uses the exact type, because you're providing the exact type rather than using type inference.

What I don't know is why lambda stuff ends up inferring the exact type of the dynamic array in some cases and the type you get when slicing it in others.

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