# HG changeset patch
# User Markus Mützel <markus.muetzel@gmx.de>
# Date 1669145915 -3600
# Node ID fb123529131bcdc65514b87c173af98f898dd970
# Parent  d006285b7509e8bd5428876897c8a9a7981a6a85# Parent  ec973756cb3a81f45b541ef4e8a9380ae7af7e32
maint: Merge stable to default.

diff -r d006285b7509 -r fb123529131b liboctave/array/CMatrix.cc
--- a/liboctave/array/CMatrix.cc	Tue Nov 22 08:23:44 2022 -0800
+++ b/liboctave/array/CMatrix.cc	Tue Nov 22 20:38:35 2022 +0100
@@ -890,19 +890,24 @@
     info = -1;
   else if (calc_cond)
     {
-      F77_INT zgecon_info = 0;
-
-      // Now calculate the condition number for non-singular matrix.
-      char job = '1';
-      Array<double> rz (dim_vector (2 * nc, 1));
-      double *prz = rz.fortran_vec ();
-      F77_XFCN (zgecon, ZGECON, (F77_CONST_CHAR_ARG2 (&job, 1),
-                                 nc, F77_DBLE_CMPLX_ARG (tmp_data), nr, anorm,
-                                 rcon, F77_DBLE_CMPLX_ARG (pz), prz, zgecon_info
-                                 F77_CHAR_ARG_LEN (1)));
-
-      if (zgecon_info != 0)
-        info = -1;
+      if (octave::math::isnan (anorm))
+        rcon = octave::numeric_limits<double>::NaN ();
+      else
+        {
+          F77_INT zgecon_info = 0;
+
+          // Now calculate the condition number for non-singular matrix.
+          char job = '1';
+          Array<double> rz (dim_vector (2 * nc, 1));
+          double *prz = rz.fortran_vec ();
+          F77_XFCN (zgecon, ZGECON, (F77_CONST_CHAR_ARG2 (&job, 1),
+                                     nc, F77_DBLE_CMPLX_ARG (tmp_data), nr,
+                                     anorm, rcon, F77_DBLE_CMPLX_ARG (pz), prz,
+                                     zgecon_info F77_CHAR_ARG_LEN (1)));
+
+          if (zgecon_info != 0)
+            info = -1;
+        }
     }
 
   if ((info == -1 && ! force)
diff -r d006285b7509 -r fb123529131b liboctave/array/fCMatrix.cc
--- a/liboctave/array/fCMatrix.cc	Tue Nov 22 08:23:44 2022 -0800
+++ b/liboctave/array/fCMatrix.cc	Tue Nov 22 20:38:35 2022 +0100
@@ -893,19 +893,24 @@
     info = -1;
   else if (calc_cond)
     {
-      F77_INT cgecon_info = 0;
-
-      // Now calculate the condition number for non-singular matrix.
-      char job = '1';
-      Array<float> rz (dim_vector (2 * nc, 1));
-      float *prz = rz.fortran_vec ();
-      F77_XFCN (cgecon, CGECON, (F77_CONST_CHAR_ARG2 (&job, 1),
-                                 nc, F77_CMPLX_ARG (tmp_data), nr, anorm,
-                                 rcon, F77_CMPLX_ARG (pz), prz, cgecon_info
-                                 F77_CHAR_ARG_LEN (1)));
-
-      if (cgecon_info != 0)
-        info = -1;
+      if (octave::math::isnan (anorm))
+        rcon = octave::numeric_limits<float>::NaN ();
+      else
+        {
+          F77_INT cgecon_info = 0;
+
+          // Now calculate the condition number for non-singular matrix.
+          char job = '1';
+          Array<float> rz (dim_vector (2 * nc, 1));
+          float *prz = rz.fortran_vec ();
+          F77_XFCN (cgecon, CGECON, (F77_CONST_CHAR_ARG2 (&job, 1),
+                                     nc, F77_CMPLX_ARG (tmp_data), nr, anorm,
+                                     rcon, F77_CMPLX_ARG (pz), prz, cgecon_info
+                                     F77_CHAR_ARG_LEN (1)));
+
+          if (cgecon_info != 0)
+            info = -1;
+        }
     }
 
   if ((info == -1 && ! force)
diff -r d006285b7509 -r fb123529131b scripts/ode/ode23.m
--- a/scripts/ode/ode23.m	Tue Nov 22 08:23:44 2022 -0800
+++ b/scripts/ode/ode23.m	Tue Nov 22 20:38:35 2022 +0100
@@ -370,23 +370,23 @@
 %!  ## x == 2: select y(2)
 %!  ## x == 3: select y([1,2])
 %!  persistent y_last
-%!  if strcmp (flag, "init")
+%!  if (strcmp (flag, "init"))
 %!    y_last = y;
-%!    if ((x == 1) || (x == 2))
+%!    if (x == 1 || x == 2)
 %!      assert (length (y) == 1);
 %!    elseif (x == 3)
 %!      assert (length (y) == 2);
 %!    endif
-%!  elseif strcmp (flag, "done")
+%!  elseif (strcmp (flag, "done"))
 %!    y_exp = fref ().';
 %!    if (x < 3)
 %!      assert (y_last, y_exp(x), 5e-4);
 %!    else
 %!      assert (y_last, y_exp, 5e-4);
 %!    endif
-%!  else # flag == ""
+%!  else  # flag == ""
 %!    y_last = y(:, end);
-%!    if ((x == 1) || (x == 2))
+%!    if (x == 1 || x == 2)
 %!      assert (length (t) == length (y));
 %!    else
 %!      assert (2 * length (t) == length (y(:)));
@@ -459,7 +459,7 @@
 %! opt = odeset ("AbsTol", 1e-8, "RelTol", 1e-8);
 %! sol = ode23 (@fpol, [0 2], [2 0], opt);
 %! assert ([sol.x(end); sol.y(:,end)], [2; fref'], 1e-3);
-%!test # hermite_cubic_interpolation
+%!test  # hermite_cubic_interpolation
 %! opt = odeset ("RelTol", 1e-8, "NormControl", "on");
 %! [t,sol] = ode23(@(t,x)[x(2);x(1)],linspace(0,1),[1;0],opt);
 %! assert (max (abs (sol(:,1)-cosh (t))),0,1e-6);
@@ -538,7 +538,7 @@
 ## "MvPattern"
 ## "Vectorized"
 
-%!test # Check that imaginary part of solution does not get inverted
+%!test  # Check that imaginary part of solution does not get inverted
 %! sol = ode23 (@(x,y) 1, [0 1], 1i);
 %! assert (imag (sol.y), ones (size (sol.y)));
 %! [x, y] = ode23 (@(x,y) 1, [0 1], 1i);
diff -r d006285b7509 -r fb123529131b scripts/ode/ode23s.m
--- a/scripts/ode/ode23s.m	Tue Nov 22 08:23:44 2022 -0800
+++ b/scripts/ode/ode23s.m	Tue Nov 22 20:38:35 2022 +0100
@@ -404,23 +404,23 @@
 %!  ## x == 2: select y(2)
 %!  ## x == 3: select y([1,2])
 %!  persistent y_last
-%!  if strcmp (flag, "init")
+%!  if (strcmp (flag, "init"))
 %!    y_last = y;
-%!    if ((x == 1) || (x == 2))
+%!    if (x == 1 || x == 2)
 %!      assert (length (y) == 1);
 %!    elseif (x == 3)
 %!      assert (length (y) == 2);
 %!    endif
-%!  elseif strcmp (flag, "done")
+%!  elseif (strcmp (flag, "done"))
 %!    y_exp = fref ().';
 %!    if (x < 3)
 %!      assert (y_last, y_exp(x), 1e-4);
 %!    else
 %!      assert (y_last, y_exp, 1e-4);
 %!    endif
-%!  else # flag == ""
+%!  else  # flag == ""
 %!    y_last = y(:,end);
-%!    if ((x == 1) || (x == 2))
+%!    if (x == 1 || x == 2)
 %!      assert (length (t) == length (y));
 %!    else
 %!      assert (2 * length (t) == length (y(:)));
@@ -547,7 +547,7 @@
 ## "MvPattern"
 ## "NonNegative"
 
-%!test # Check that imaginary part of solution does not get inverted
+%!test  # Check that imaginary part of solution does not get inverted
 %! sol = ode23s (@(x,y) 1, [0 1], 1i);
 %! assert (imag (sol.y), ones (size (sol.y)));
 %! [x, y] = ode23s (@(x,y) 1, [0 1], 1i);
diff -r d006285b7509 -r fb123529131b scripts/ode/ode45.m
--- a/scripts/ode/ode45.m	Tue Nov 22 08:23:44 2022 -0800
+++ b/scripts/ode/ode45.m	Tue Nov 22 20:38:35 2022 +0100
@@ -369,23 +369,23 @@
 %!  ## x == 2: select y(2)
 %!  ## x == 3: select y([1,2])
 %!  persistent y_last
-%!  if strcmp (flag, "init")
+%!  if (strcmp (flag, "init"))
 %!    y_last = y;
-%!    if ((x == 1) || (x == 2))
+%!    if (x == 1 || x == 2)
 %!      assert (length (y) == 1);
 %!    elseif (x == 3)
 %!      assert (length (y) == 2);
 %!    endif
-%!  elseif strcmp (flag, "done")
+%!  elseif (strcmp (flag, "done"))
 %!    y_exp = fref ().';
 %!    if (x < 3)
 %!      assert (y_last, y_exp(x), 1e-4);
 %!    else
 %!      assert (y_last, y_exp, 1e-4);
 %!    endif
-%!  else # flag == ""
+%!  else  # flag == ""
 %!    y_last = y(:,end);
-%!    if ((x == 1) || (x == 2))
+%!    if (x == 1 || x == 2)
 %!      assert (length (t) == length (y));
 %!    else
 %!      assert (2 * length (t) == length (y(:)));
@@ -550,7 +550,7 @@
 ## "MvPattern"
 ## "Vectorized"
 
-%!test # Check that imaginary part of solution does not get inverted
+%!test  # Check that imaginary part of solution does not get inverted
 %! sol = ode45 (@(x,y) 1, [0 1], 1i);
 %! assert (imag (sol.y), ones (size (sol.y)));
 %! [x, y] = ode45 (@(x,y) 1, [0 1], 1i, odeset ("Refine", 1));