| Issue |
138963
|
| Summary |
"error: function-like macro '__alignof__' is not defined" when __alignof__ used in #if condition
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
dlech
|
Test case:
```c
#if __alignof__(long long) < 8
#endif
```
Result:
```console
$ clang test.c
test.c:2:5: error: function-like macro '__alignof__' is not defined
2 | #if __alignof__(long long) < 8
| ^
1 error generated.
```
Expectation:
`__allignof__()` should evaluate to a compile-time integer constant and therefore be usable in a `#if` condition, just like `sizeof()`, etc.
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