gcc/testsuite/g++.dg/inherit/conv1.C


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typedef struct _A A;
typedef struct _A B;

void some_function(B *b);

class AClass {

public:
  operator A*() { return 0;}

};

class BClass :public AClass {

public:
  operator B*() { return 0;}

};

int main(int argc, char **argv) {
  BClass b;
  some_function(b);
}