Bug #2649: Vector can't be coerced into Vector

• Status: Closed
• Assignee: -
• Target version: -

[mame (Yusuke Endoh)]

=begin
遠藤です。

Vector に Vector をかけると Vector can't be coerced into Vector という
例外が出ます。

$ ./ruby -rmatrix -e 'Vector[1, 2, 3] * Vector[4, 5, 6]'
/home/mame/work/ruby/lib/ruby/1.9.1/matrix.rb:1344:in coerce': Vector can't be coerced into Vector (TypeError) from /home/mame/work/ruby/lib/ruby/1.9.1/matrix.rb:1218:in *'
from -e:1:in `'

Vector に Vector はかけられないので例外になるのは当然ですが、メッセージが
わかりにくいと思います。

--- a/lib/matrix.rb
+++ b/lib/matrix.rb
@@ -1214,6 +1209,8 @@ class Vector
Vector.elements(els, false)
when Matrix
Matrix.column_vector(self) * x

• when Vector

•  Vector.Raise WrongArgType, x.class, "Numeric or Matrix"
  

  else
  s, x = x.coerce(self)
  s * x

--
Yusuke ENDOH [e-mail]
=end

[keiju (Keiju Ishitsuka)]

=begin
けいじゅ＠いしつかです.

In [ruby-dev:40150] the message: "[ruby-dev:40150] [Bug:trunk] Vector can't be coerced into Vector", on Jan/26 00:22(JST)
Yusuke ENDOH writes:

遠藤です。

Vector に Vector をかけると Vector can't be coerced into Vector という
例外が出ます。

$ ./ruby -rmatrix -e 'Vector[1, 2, 3] * Vector[4, 5, 6]'
/home/mame/work/ruby/lib/ruby/1.9.1/matrix.rb:1344:in coerce': Vector can't be coerced into Vector (TypeError) from /home/mame/work/ruby/lib/ruby/1.9.1/matrix.rb:1218:in *'
from -e:1:in `'

Vector に Vector はかけられないので例外になるのは当然ですが、メッセージが
わかりにくいと思います。

おっしゃる通りです.

__
---------------------------------------------------->> 石塚 圭樹 <<---
---------------------------------->> e-mail: [e-mail] <<---

=end

[keiju (Keiju Ishitsuka)]

• Status changed from Open to Closed
• % Done changed from 0 to 100

=begin
This issue was solved with changeset r26448.
Yusuke, thank you for reporting this issue.
Your contribution to Ruby is greatly appreciated.
May Ruby be with you.

=end