[llvm-bugs] Why utf convertion functions requires output buffer to be empty?

[Reid Kleckner via llvm-bugs]

You can probably relax it if you like.

On Thu, Nov 19, 2015 at 9:49 PM, Xpol Wan via llvm-bugs <
llvm-bugs at lists.llvm.org> wrote:

>
> The function convertUTF16ToUTF8String and convertUTF8ToUTF16String defined
> in lib/Support/ConvertUTFWrapper.cpp has an assertion that out buffer
> should be empty.
>
> But why is these assertion necessary?
>
> see:
>
>
> https://github.com/llvm-mirror/llvm/blob/master/lib/Support/ConvertUTFWrapper.cpp#L85
>
> https://github.com/llvm-mirror/llvm/blob/master/lib/Support/ConvertUTFWrapper.cpp#L135
>
> Best Regards!
>
> Xpol Wan
> // There is a better way!
>
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>
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