#if !defined(__ERROR_CHECK_H__)
#define __ERROR_CHECK_H__

extern int last_error;
extern char *last_error_file;
extern int last_error_line;
extern int die_on_error;
extern void _DisposHandle (Handle);

#define badSizeErr (-512)

#define ERROR_CHECK(n)				\
do						\
{						\
  last_error = (n);				\
  if (last_error != noErr && die_on_error)	\
    {						\
      last_error_file = __FILE__;		\
      last_error_line = __LINE__;		\
      *(long *)-1 = -1;				\
    }						\
}						\
while (0)

#define MEM_CHECK() ERROR_CHECK(MemError())

#define RES_CHECK() ERROR_CHECK(ResError())

#define HANDLE_CHECK(h)						\
do								\
{								\
  Size __s;							\
								\
  __s = GetHandleSize (h);					\
  ERROR_CHECK (__s == sizeof **(h) ? noErr : badSizeErr);	\
}								\
while (0)

#define DisposHandle(h)				\
do						\
{						\
  _DisposHandle(h);				\
  MEM_CHECK();					\
}						\
while (0)

#endif