From: Marc-Andre Lafortune <redmine@...>
Date: 2009-12-19T10:35:32+09:00
Subject: [ruby-core:27223] [Bug #2495] Matrix: Vector#each2 should check its argument

Bug #2495: Matrix: Vector#each2 should check its argument
http://redmine.ruby-lang.org/issues/show/2495

Author: Marc-Andre Lafortune
Status: Open, Priority: Normal
Assigned to: Keiju Ishitsuka, Category: lib, Target version: 1.9.2
ruby -v: ruby 1.9.2dev (2009-12-19 trunk 26121) [x86_64-darwin10.2.0]

$ rubydev -r matrix -e 'p Vector[*1..4].each2(nil){|x, y| p "#{x}, #{y}"}'
/usr/local/rubydev/lib/ruby/1.9.1/matrix.rb:1149:in `each2': undefined method `size' for nil:NilClass (NoMethodError)

$ rubydev -r matrix -e 'p Vector[*1..4].each2(42){|x, y| p "#{x}, #{y}"}'
/usr/local/rubydev/lib/ruby/1.9.1/matrix.rb:1149:in `each2': Vector dimension mismatch (ExceptionForMatrix::ErrDimensionMismatch)
	from -e:1:in `<main>'

$ rubydev -r matrix -e 'p Vector[*1..8].each2(42){|x, y| p "#{x}, #{y}"}'
"1, 0"
"2, 1"
"3, 0"
"4, 1"
"5, 0"
"6, 1"
"7, 0"
"8, 0"

(or vice versa, if on a 32 bit platform)


----------------------------------------
http://redmine.ruby-lang.org