| Issue |
164933
|
| Summary |
[clang] Diagnostic message are incorrectly wrapped if colors are enabled
|
| Labels |
clang:diagnostics
|
| Assignees |
|
| Reporter |
tbaederr
|
Because `OS.tell()` doesn't know about colors so the control characters count into the length as well, which means in
https://github.com/llvm/llvm-project/blob/57ccb4624f7a8329567ec5a02962815f5617e3f1/clang/lib/Frontend/TextDiagnostic.cpp#L665-L680
we calculate the value for `CurrentColumn` incorrectly. On my terminal `$COLUMNS` is currently 120 (and llvm figures that out correctly), but the diagnostic message is wrapped even though it would fit in to the previous line just fine (as proven by passing `-fmessage-length=130`:
<img width="1732" height="786" alt="Image" src="" />
![]()
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