| Issue |
149185
|
| Summary |
Diagnose vertical white space in single line comments
|
| Labels |
clang:frontend,
clang:diagnostics
|
| Assignees |
|
| Reporter |
cor3ntin
|
The Unicode consortium and the C++ committee are interested in diagnosing Vertical whitespaces (VT, FF) that appear in single-line comments. We should explore a warning to guide this effort.
The motivation for this warning is that if an IDE treats such a vertical character as whitespace (which they are recommended to do), the divergence between the behavior of compilers and IDEs can lead to code spoofing, and therefore security concerns
https://www.unicode.org/reports/tr55/#Spoofing-LB
https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2025/p2843r2.pdf
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