| Issue |
171874
|
| Summary |
return (NULL) will give incorrect warnings with -Wimplicit-void-ptr-cast
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
Leont
|
This program:
```
#include <stdlib.h>
struct foo {
char baz;
};
struct foo* bar() {
return(NULL);
}
int main() {
bar();
}
```
Will give the following warning when compiled with `-Wimplicit-void-ptr-cast` / `-Wc++-compat`
```
test.c:8:8: warning: implicit conversion when returning 'void *' from a function with result type 'struct foo *' is not
permitted in C++ [-Wimplicit-void-ptr-cast]
8 | return(NULL);
| ^~~~~~
1 warning generated.
```
Even though it's perfectly valid C++ (because NULL isn't a void pointer C++, so the _expression_ `(NULL)` won't be a void pointer either) that clang++ doesn't have any issue with.
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