diff options
| -rw-r--r-- | ChangeLog | 5 | ||||
| -rw-r--r-- | sprintf.c | 8 |
2 files changed, 12 insertions, 1 deletions
@@ -1,3 +1,8 @@ +Fri Jul 28 10:19:28 2006 Yukihiro Matsumoto <matz@ruby-lang.org> + + * sprintf.c (rb_f_sprintf): documentation update patch from Jacob + Fugal <lukfugl at gmail.com>. [ruby-core:08418] + Fri Jul 28 09:41:45 2006 Yukihiro Matsumoto <matz@ruby-lang.org> * time.c (time_to_s): fixed typo. [ruby-dev:29162] @@ -216,7 +216,12 @@ sign_bits(int base, const char *p) * s | Argument is a string to be substituted. If the format * | sequence contains a precision, at most that many characters * | will be copied. - * u | Treat argument as an unsigned decimal number. + * u | Treat argument as an unsigned decimal number. Negative integers + * | are displayed as a 32 bit two's complement plus one for the + * | underlying architecture; that is, 2 ** 32 + n. However, since + * | Ruby has no inherent limit on bits used to represent the + * | integer, this value is preceded by two dots (..) in order to + * | indicate a infinite number of leading sign bits. * X | Convert argument as a hexadecimal number using uppercase * | letters. Negative numbers will be displayed with two * | leading periods (representing an infinite string of @@ -233,6 +238,7 @@ sign_bits(int base, const char *p) * sprintf("%1$*2$s %2$d %1$s", "hello", 8) #=> " hello 8 hello" * sprintf("%1$*2$s %2$d", "hello", -8) #=> "hello -8" * sprintf("%+g:% g:%-g", 1.23, 1.23, 1.23) #=> "+1.23: 1.23:1.23" + * sprintf("%u", -123) #=> "..4294967173" */ VALUE |