From bug-octave-request at bevo dot che dot wisc dot edu Tue Dec  9 22:07:45 2003
Subject: Empty string isn't equivalent to empty matrix
From: "John W. Eaton" <jwe at bevo dot che dot wisc dot edu>
To: Geraint Paul Bevan <g dot bevan at eng dot gla dot ac dot uk>
cc: bug-octave mailing list <bug-octave at bevo dot che dot wisc dot edu>
Date: Tue, 9 Dec 2003 22:06:39 -0600

On  2-Dec-2003, Geraint Paul Bevan <g dot bevan at eng dot gla dot ac dot uk> wrote:

| Bug report for Octave 2.1.52 configured for i386-pc-linux-gnu
| 
| Description:
| - -----------
| 
| ~  Empty string "" no longer works as empty matrix [] in concatenation
| with scalar.
| 
| ~  GNU Octave, version 2.1.50 (i386-pc-linux-gnu).
| 
| ~  octave:1> s = [ "" ; 1 ]
| ~  s = 1
| 
| 
| ~  GNU Octave, version 2.1.52 (i386-pc-linux-gnu).
| 
| ~  octave:1> s = [ "" ; 1 ]
| ~  warning: implicit conversion from scalar to string
| ~  s = 

| 
| Repeat-By:
| - ---------
| 
| ~  octave:1> s = [ "" ; 1 ]

If you want compatibility with Matlab, then I think this is not a bug.

jwe



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