* io.c (io_close): always calls "close" method of the receiver.

  [ruby-core:6911] [ruby-core:8112]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@10636 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 7 insertions, 1 deletions

diff --git a/sprintf.c b/sprintf.c
index 9ad7e0c4cc..c29b9f9780 100644
--- a/sprintf.c
+++ b/sprintf.c
@@ -213,7 +213,12 @@ sign_bits(base, 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
@@ -230,6 +235,7 @@ sign_bits(base, 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"
  */
 
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