gcc/testsuite/g++.old-deja/g++.other/realloc.C

// { dg-do assemble  }
// { dg-options "-Wno-builtin-declaration-mismatch" }

extern "C" void realloc();

class bug {
public:
  void realloc(int foo,int bar);
};

void f() {
  bug c;
  c.realloc(50,50);
}