[Issue 18084] tempCString buffer size is versioned

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=18084

Steven Schveighoffer <schveiguy at yahoo.com> changed:

           What    |Removed                     |Added
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                 CC|                            |schveiguy at yahoo.com

--- Comment #1 from Steven Schveighoffer <schveiguy at yahoo.com> ---
drat.

This was proper when it was first implemented here:
https://github.com/dlang/phobos/pull/3415

But then messed up here:
https://github.com/dlang/phobos/pull/4746

The original code was safe, unsure why it was undone... Will try to make a PR
to restore the safe version.

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