clang-tidy: google-readability-casting, aka modernize-avoid-c-style-cast, for nullptr #173147
Description
// a.cpp
void f(int *) {}
void f(double *) {}
int main() {
f((int *)nullptr);
}clang-tidy 21.1.6 warns the cast but does not provide fix:
$ clang-tidy '--checks=-*,google-readability-casting' --fix a.cpp
1 warning generated.
/tmp/a.cpp:6:5: warning: C-style casts are discouraged; use static_cast/const_cast/reinterpret_cast [google-readability-casting]
5 | f((int *)nullptr);
| ^However, static_cast is the valid choice, so it can be fixed:
--- current behaviour
+++ suggestion
-/tmp/a.cpp:6:5: warning: C-style casts are discouraged; use static_cast/const_cast/reinterpret_cast [google-readability-casting]
+/tmp/a.cpp:6:5: warning: C-style casts are discouraged; use static_cast [google-readability-casting]
5 | f((int *)nullptr);
- | ^
+ | ^~~~~~~
+ | static_cast<int *>( )