[Issue 18529] .ptr on arrays can no longer be used in @safe code prevents valid code

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=18529

--- Comment #3 from anonymous4 <dfj1esp02 at sneakemail.com> ---
---
int[]a=[0,1];
auto b = a[0..0];
a.length=0;
a.assumeSafeAppend;
assert(a[0..0] is b);
---
Would this work?

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