| Issue |
142327
|
| Summary |
Behaviour of quotation marks in C++-style when running clang cpp with `-traditional-cpp`
|
| Labels |
clang
|
| Assignees |
|
| Reporter |
myzhang1029
|
Using the `-traditional-cpp` flag (or invoking as `cpp` directly), clang seems to be mis-parsing quotation marks inside C++-style comments.
Test code:
```c
// Test "double
// Try 'single
```
Command:
```
$CC -traditional-cpp -E test.c | cat
```
(piping through `cat` to separate `stderr` from `stdout`)
Output from `clang` (Homebrew clang version 20.1.6)
(omitting line number directives)
```
test.c:1:9: warning: missing terminating '"' character [-Winvalid-pp-token]
1 | // Test "double
| ^
test.c:2:8: warning: missing terminating ' character [-Winvalid-pp-token]
2 | // Try 'single
| ^
2 warnings generated.
// Test "double
// Try 'single
```
The `invalid-pp-token` warning seems to be bogus.
Output from GCC (clean output)
```
// Test "double
// Try 'single
```
Honestly, since this seems to be a small issue, I am personally fine with this becoming a wont fix or a `FIXME` inside `test/Preprocessor/traditional-cpp.c`.
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