an integer. */
#define TYPE_IS_INTEGER(t) ((t) 1.5 == 1)
-/* True if negative values of the signed integer type T use twos
- complement, ones complement, or signed magnitude representation,
- respectively. Much GNU code assumes twos complement, but some
+/* True if negative values of the signed integer type T use two's
+ complement, one's complement, or signed magnitude representation,
+ respectively. Much GNU code assumes two's complement, but some
people like to be portable to all possible C hosts. */
#define TYPE_TWOS_COMPLEMENT(t) ((t) ~ (t) 0 == (t) -1)
#define TYPE_ONES_COMPLEMENT(t) ((t) ~ (t) 0 == 0)
? (t) -1 \
: ~ (~ (t) 0 << (sizeof (t) * CHAR_BIT - 1))))
-/* Bound on length of the string representing an integer value or type T.
+/* Bound on length of the string representing an integer type or expression T.
Subtract 1 for the sign bit if t is signed; log10 (2.0) < 146/485;
add 1 for integer division truncation; add 1 more for a minus sign
if needed. */
#define INT_STRLEN_BOUND(t) \
((sizeof (t) * CHAR_BIT - 1) * 146 / 485 + 2)
-/* Bound on buffer size needed to represent an integer value or type T,
+/* Bound on buffer size needed to represent an integer type or expression T,
including the terminating null. */
#define INT_BUFSIZE_BOUND(t) (INT_STRLEN_BOUND (t) + 1)