testBoolCastCompareDifferentType.cc

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#include <utl/SafeBoolCast.h>

using namespace utl;


class C1 : public SafeBoolCast<C1> {
public:
  bool BoolCast() const { return true; }

  int fI;
};


class C2 : public SafeBoolCast<C2> {
public:
  bool BoolCast() const { return false; }

  double fD;
};


class Err1 {
public:
  operator bool() const { return true; }

  int fI;
};


class Err2 {
public:
  operator bool() const { return true; }

  int fI;
};


int
main()
{
  C1 o1;
  C2 o2;

  Err1 oe1;
  Err2 oe2;

  // this compiles
  bool b = (oe1 == oe2);

  // this fails
  const int bb = (o1 == o2);

  // to avoid additional warnings
  b = bb;

  return 0;
}