From: Daniel Gutmanas <redmine@...>
Date: 2010-08-20T07:59:20+09:00
Subject: [ruby-core:31778] [Bug #3721] Unsigned formats broken in 1.9.2's unpack

Bug #3721: Unsigned formats broken in 1.9.2's unpack
http://redmine.ruby-lang.org/issues/show/3721

Author: Daniel Gutmanas
Status: Open, Priority: Normal
ruby -v: ruby 1.9.2p0 (2010-08-18 revision 29036) [x64-mswin64_100]

When specifying the V format code, unpack should treat the four bytes as an unsigned long integer. As can be seen in the following example, it treats it as a signed integer instead:
"\xFF\xFF\xFF\xFF".unpack(?V) => [-1]
The same code worked properly in 1.9.1.

By the way, the same problem occurs for the N and L format codes.


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