RegSize.h

#include <cstdio>
#include <stdexcept>
 
class RegSize {
  /* Throws exception if size if not in allowed range. */
 
 public:
  explicit RegSize(size_t maxSize, uint32_t initialValue);
 
  operator int() const;
  operator uint32_t() const;
  RegSize& operator=(uint32_t val);
 
 private:
  size_t _maxSize;
  uint32_t _val;
};