-#if HAVE_INTTYPES_H
-# include <inttypes.h>
-#endif
-
-#if HAVE_LIMITS_H
-# include <limits.h>
-#endif
-#ifndef CHAR_BIT
-# define CHAR_BIT 8
-#endif
-
-#if HAVE_SYS_TYPES_H
-# include <sys/types.h>
-#endif
-
-/* Upper bound on the string length of an integer converted to string.
- 302 / 1000 is ceil (log10 (2.0)). Subtract 1 for the sign bit;
- add 1 for integer division truncation; add 1 more for a minus sign. */
-#define INT_STRLEN_BOUND(t) ((sizeof (t) * CHAR_BIT - 1) * 302 / 1000 + 2)
-
-#define INT_BUFSIZE_BOUND(t) (INT_STRLEN_BOUND (t) + 1)