[bug #68300] blkdiag with arguments of type single returns result of type double

"Dmitri A. Sergatskov" <[email protected]> Sat, 2 May 2026 00:23:40 -0400 (EDT)

Newsgroups	gmane.comp.gnu.octave.bugs
Message-ID	<[email protected]>

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Follow-up Comment #1, bug #68300 (group octave):

Attached CSET fixes that for me:

octave:1> A=single(ones(2))
A =

   1   1
   1   1

octave:2> B=blkdiag(A,A)
B =

   1   1   0   0
   1   1   0   0
   0   0   1   1
   0   0   1   1

octave:3> whos
Variables visible from the current scope:

variables in scope: top scope

  Attr   Name        Size                     Bytes  Class
  ====   ====        ====                     =====  ===== 
         A           2x2                         16  single
         B           4x4                         64  single

Total is 20 elements using 80 bytes

(file bug68300_blkdiag_20260502_100.cset)

Since this is just an M-file, you can replace your with the attached copy 
(file blkdiag.m)

Dmitri.
-- 


(file #58534, file #58535)

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Additional Item Attachment:

Name: bug68300_blkdiag_20260502_100.cset Size: 6.2KiB

<https://file.savannah.gnu.org/file/bug68300_blkdiag_20260502_100.cset?file_id=58534>

Name: blkdiag.m                      Size: 7.2KiB
    <https://file.savannah.gnu.org/file/blkdiag.m?file_id=58535>


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