diff options
| -rw-r--r-- | lib/intprops.h | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/lib/intprops.h b/lib/intprops.h index eb79ac22d..409e0f1d4 100644 --- a/lib/intprops.h +++ b/lib/intprops.h @@ -27,9 +27,9 @@ 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) @@ -53,13 +53,13 @@ ? (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) |