Wrong uppercase for ß #79660
Description
I tried this code:
println!("{}", 'ß'.to_uppercase());I expected to see this happen:
I expected this to print ẞ (see Capital ẞ).
Instead, this happened:
The code printed SS which is often use to represent ß in uppercase.
Since there is a dedicated character for the capital ẞ (which looks really similar to the lowercase ß in this font), I think to_uppercase should return the actual uppercase letter instead of SS.
Meta
rustc --version --verbose:
rustc 1.48.0 (7eac88abb 2020-11-16)
binary: rustc
commit-hash: 7eac88abb2e57e752f3302f02be5f3ce3d7adfb4
commit-date: 2020-11-16
host: x86_64-unknown-linux-gnu
release: 1.48.0
LLVM version: 11.0
rustc +nightly --version --verbose:
rustc 1.50.0-nightly (1c389ffef 2020-11-24)
binary: rustc
commit-hash: 1c389ffeff814726dec325f0f2b0c99107df2673
commit-date: 2020-11-24
host: x86_64-unknown-linux-gnu
release: 1.50.0-nightly