| Issue |
142568
|
| Summary |
lldb inline diagnostics print unsupported characters to Windows terminal by default
|
| Labels |
lldb,
platform:windows
|
| Assignees |
|
| Reporter |
DavidSpickett
|
test.c:
```
int add(int n) { return 2 + n; }
int main() { return add(1); }
```
Compile with debug information:
```
C:\Users\tcwg>cl.exe test.c /Zi
```
Debug with lldb:
```
C:\Users\tcwg>llvm-worker\lldb-aarch64-windows\build\bin\lldb.exe test.exe
(lldb) target create "test.exe"
Current executable set to 'C:\Users\tcwg\test.exe' (aarch64).
(lldb) b main
Breakpoint 1: where = test.exe`main at test.c:2, address = 0x00000001400142b8
(lldb) run
Process 13376 launched: 'C:\Users\tcwg\test.exe' (aarch64)
Process 13376 stopped
* thread #1, stop reason = breakpoint 1.1
frame #0: 0x00007ff6595a42b8 test.exe`main at test.c:2
1 int add(int n) { return 2 + n; }
-> 2 int main() { return add(1); }
```
Evaluate an incorrect _expression_:
```
(lldb) p add("abc")
˄
Γò░ΓöÇ error: no matching function for call to 'add'
note: note: candidate function not viable: no known conversion from 'const char[4]' to 'int' for 1st argument
```
This attempts to use what I think are unicode characters for curved lines, but this default Windows command prompt does not recognise them (neither does a Powershell, which is surprising).
Turning them off falls back to using just pipe characters:
```
(lldb) settings set show-inline-diagnostics false
(lldb) p add("abc")
error: <user _expression_ 4>:1:1: no matching function for call to 'add'
1 | add("abc")
| ^~~
note: note: candidate function not viable: no known conversion from 'const char[4]' to 'int' for 1st argument
```
Ideally we would detect support for these characters in the terminal. I suspect the right "code page" might make this work.
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