[libc-commits] [libc] [libc] Template the writing mode for the writer class (PR #111559)

[Nick Desaulniers via libc-commits]

https://github.com/nickdesaulniers commented:

patch LGTM, but I'll defer to @michaelrj-google to check that the correct modes are used explicitly in each case.

I'm guessing this PR comes with a tradeoff to code size?

https://github.com/llvm/llvm-project/pull/111559