#ifndef UTIL_H__
#define UTIL_H__

#if __GNUC__ >= 3
# define is_constant(c) __builtin_constant_p (c)
#else
# define is_constant(c) 0
#endif

// makes dynamically allocated objects zero-initialised
struct zero_initialised
{
  void *operator new (size_t s);
  void *operator new [] (size_t s);
  void operator delete (void *p, size_t s);
  void operator delete [] (void *p, size_t s);
};

#endif