[Issue 13572] etc.c.zlib must be nothrow

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=13572

--- Comment #13 from Ketmar Dark <ketmar at ketmar.no-ip.org> ---
assign to .ptr no. but you *can* call the @safe code from unsafe with invalid
pointer, what i was trying to show. essentially, @safe code can *end* *up* with
invalid pointer, 'cause it was invoked with it.

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