[libcxx-commits] [libcxx] [libc++][format] Don't leave the output buffer full after a bulk write (PR #226791)

[A. Jiang via libcxx-commits]

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frederick-vs-ja wrote:

I believe this was because of the precedential `bug_81590.compile.pass.cpp`. I think ideally these cases should go to `format_tests.h`, but the structure of `format_tests.h` looks a bit too dedicated to be efficiently expanded.

https://github.com/llvm/llvm-project/pull/226791