There's an an equivalent in C++:
```c++
#include <iostream>
static int foo = 1;
int bar (const int &foo) {
::foo = 2;
return foo;
}
int main () {
std::cout << foo << ',' << bar(1) << std::endl; // 2,1
return 0;
}
```
`::` is more reasonable for me
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