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// prms-id: 658
#include <ostream.h>
extern "C" void abort();
/* We may not find the libg++ <bool.h>. */
#ifndef FALSE
#define FALSE false
#endif
#ifndef TRUE
#define TRUE true
#endif
class Object {
public:
Object();
Object(const Object&);
~Object();
void OK() const;
private:
bool _destructed;
};
class Char: public Object {
public:
Char();
Char(char);
Char(const Char&);
~Char();
operator char () const;
private:
char _c;
};
int main()
{
Char r, s;
r = Char('r');
s = Char('s');
}
//
// Object stuff
//
Object::Object():
_destructed(FALSE)
{}
Object::Object(const Object& other):
_destructed(FALSE)
{
other.OK();
}
Object::~Object()
{
OK();
_destructed = TRUE;
}
void
Object::OK() const
{
if (_destructed) {
cerr << "FAILURE - reference was made to a destructed object\n";
abort();
}
}
//
// Char stuff
//
Char::Char():
Object(),
_c('a')
{ }
Char::Char(char c):
Object(),
_c(c)
{ }
Char::Char(const Char& other):
Object(other),
_c(other._c)
{ }
Char::~Char()
{
OK();
}
Char::operator char () const
{
return _c;
}
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