# HG changeset patch
# User Jaroslav Hajek <highegg@gmail.com>
# Date 1260878825 -3600
# Node ID 76cf4aec34e9d955997cdfadfac6be044b0c1b7d
# Parent  bb30843c49291763758539af81bcff5eebc23b77
allow functions returning no value in cellfun

diff -r bb30843c4929 -r 76cf4aec34e9 src/ChangeLog
--- a/src/ChangeLog	Tue Dec 15 10:05:38 2009 +0100
+++ b/src/ChangeLog	Tue Dec 15 13:07:05 2009 +0100
@@ -1,3 +1,9 @@
+2009-12-15  Jaroslav Hajek  <highegg@gmail.com>
+
+	* DLD-FUNCTIONS/cellfun.cc (Fcellfun): Preserve original nargout. Call
+	functions with this value. Use nargout1 to possibly accumulate extra
+	outputs, as long as they are defined.
+
 2009-12-14  Jaroslav Hajek  <highegg@gmail.com>
 
 	* ov-range.cc (octave_range::do_index_op): Defer single subscript to
diff -r bb30843c4929 -r 76cf4aec34e9 src/DLD-FUNCTIONS/cellfun.cc
--- a/src/DLD-FUNCTIONS/cellfun.cc	Tue Dec 15 10:05:38 2009 +0100
+++ b/src/DLD-FUNCTIONS/cellfun.cc	Tue Dec 15 13:07:05 2009 +0100
@@ -272,7 +272,7 @@
 {
   octave_value_list retval;
   int nargin = args.length ();
-  nargout = (nargout < 1 ? 1 : nargout);
+  int nargout1 = (nargout < 1 ? 1 : nargout);
 
   if (nargin < 2)
     {
@@ -509,7 +509,7 @@
 
       if (uniform_output)
         {
-          OCTAVE_LOCAL_BUFFER (std::auto_ptr<scalar_col_helper>, retptr, nargout);
+          OCTAVE_LOCAL_BUFFER (std::auto_ptr<scalar_col_helper>, retptr, nargout1);
 
           for (octave_idx_type count = 0; count < k ; count++)
             {
@@ -541,15 +541,20 @@
               if (error_state)
                 goto cellfun_err;
 
-              if (tmp.length() < nargout)
+              if (tmp.length () < nargout1)
                 {
-                  error ("cellfun: too many output arguments");
-                  goto cellfun_err;
+                  if (tmp.length () < nargout)
+                    {
+                      error ("cellfun: too many output arguments");
+                      goto cellfun_err;
+                    }
+                  else
+                    nargout1 = 0;
                 }
 
               if (count == 0)
                 {
-                  for (int j = 0; j < nargout; j++)
+                  for (int j = 0; j < nargout1; j++)
                     {
                       octave_value val = tmp(j);
 
@@ -564,7 +569,7 @@
                 }
               else
                 {
-                  for (int j = 0; j < nargout; j++)
+                  for (int j = 0; j < nargout1; j++)
                     {
                       octave_value val = tmp(j);
 
@@ -583,8 +588,8 @@
                 break;
             }
 
-          retval.resize (nargout);
-          for (int j = 0; j < nargout; j++)
+          retval.resize (nargout1);
+          for (int j = 0; j < nargout1; j++)
             {
               if (retptr[j].get ())
                 retval(j) = retptr[j]->result ();
@@ -594,8 +599,8 @@
         }
       else
         {
-          OCTAVE_LOCAL_BUFFER (Cell, results, nargout);
-          for (int j = 0; j < nargout; j++)
+          OCTAVE_LOCAL_BUFFER (Cell, results, nargout1);
+          for (int j = 0; j < nargout1; j++)
             results[j].resize (fdims);
 
           for (octave_idx_type count = 0; count < k ; count++)
@@ -628,19 +633,24 @@
               if (error_state)
                 goto cellfun_err;
 
-              if (tmp.length() < nargout)
+              if (tmp.length () < nargout1)
                 {
-                  error ("cellfun: too many output arguments");
-                  goto cellfun_err;
+                  if (tmp.length () < nargout)
+                    {
+                      error ("cellfun: too many output arguments");
+                      goto cellfun_err;
+                    }
+                  else
+                    nargout1 = 0;
                 }
 
 
-              for (int j = 0; j < nargout; j++)
+              for (int j = 0; j < nargout1; j++)
                 results[j](count) = tmp(j);
             }
 
-          retval.resize(nargout);
-          for (int j = 0; j < nargout; j++)
+          retval.resize(nargout1);
+          for (int j = 0; j < nargout1; j++)
             retval(j) = results[j];
         }