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changeset 12897:503865c2e542

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strfns.cc: Return empty string in strvcat if called sans arguments (bug #33533)
author Jordi Gutiérrez Hermoso <jordigh@gmail.com>
date Wed, 27 Jul 2011 18:47:13 -0500
parents 8edece28cf4d
children 0ca8f06aba7a
files src/strfns.cc
diffstat 1 files changed, 5 insertions(+), 1 deletions(-) [+]
line wrap: on
line diff
--- a/src/strfns.cc	Wed Jul 27 15:40:06 2011 -0700
+++ b/src/strfns.cc	Wed Jul 27 18:47:13 2011 -0500
@@ -170,6 +170,7 @@
 @deftypefnx {Built-in Function} {} strvcat (@var{x}, @dots{})\n\
 @deftypefnx {Built-in Function} {} strvcat (@var{s1}, @var{s2}, @dots{})\n\
 @deftypefnx {Built-in Function} {} strvcat (@var{cell_array})\n\
+@deftypefnx {Built-in Function} {} strvcat ()\n\
 Create a character array from one or more numeric matrices, character\n\
 matrices, or cell arrays.  Arguments are concatenated vertically.\n\
 The returned values are padded with blanks as needed to make each row\n\
@@ -196,6 +197,9 @@
          \"half   \"]\n\
 @end group\n\
 @end example\n\
+\n\
+For compatibility with @sc{Matlab}, calling @code{strvcat} without arguments\n\
+returns the empty string.\n\
 @seealso{char, strcat, cstrcat}\n\
 @end deftypefn")
 {
@@ -273,7 +277,7 @@
       retval = octave_value (result, '\'');
     }
   else
-    print_usage ();
+    retval = octave_value ("");
 
   return retval;
 }