[libc-commits] [libc] [libc] Add getc, ungetc, fflush to enable libc++ iostream on baremetal (PR #175530)

[Volodymyr Turanskyy via libc-commits]

voltur01 wrote:

Thank you @petrhosek! I created https://github.com/llvm/llvm-project/pull/183556 to reland.

https://github.com/llvm/llvm-project/pull/175530