Re: max([],1)

[David Bateman]

Gerd Bürger wrote:
> In octave-2.9 I get
>
> max(1,[]) = 1, max([],1) = [].
>
> Is that on purpose?
>
> Gerd
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> Help-octave mailing list
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>
>   
I get the same behavior in 2.9.12+, but MatlabR2007a gives..

>> max(1,[])

ans =

     []

>>  max([],1)

ans =

     []

>> max(1,[],1)

ans =

     1

In fact I think the matlab behavior is rather stupid as "max(1,[])"
should probably be treated as "max(1,[],1)". In any case the attached
patch makes the behavior compatible.. John, make your choice whether you
want to apply it or not...

D.




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--- src/DLD-FUNCTIONS/minmax.cc.~1.23.~ 2006-10-17 15:39:23.000000000 +0200
+++ src/DLD-FUNCTIONS/minmax.cc 2007-06-08 15:44:36.812698395 +0200
@@ -99,7 +99,7 @@
        dim = 0; \
     } \
  \
-  bool single_arg = (nargin == 1) || arg2.is_empty();  \
+  bool single_arg = (nargin == 1) || (arg2.is_empty() && nargin == 3); \
  \
   if (single_arg && (nargout == 1 || nargout == 0)) \
     { \