[Issue 10999] Limited type matching

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=10999


bearophile_hugs at eml.cc changed:

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


--- Comment #1 from bearophile_hugs at eml.cc 2013-09-10 07:50:26 PDT ---
Implicit casts are generally bad/dangerous, despite they are sometimes handy,
so generally we should be careful in introducing even more of them.

I don't like the idea of an implicit cast from ushort[2] to short[2] on the
basis of type safety, despite the current design breaks symmetry a little.
Sometimes breaking the symmetry is acceptable if it increases safety.

Adding a no-op  cast(short[2])  in the code seems acceptable because this
conversion seems uncommon enough (this conversion should call no run-time
functions).

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