From 42b82087d5693f98aa844bf33f641db24acae8b5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=A9bastien=20Villemot?= <sebastien@dynare.org>
Date: Wed, 16 May 2018 14:13:22 +0200
Subject: [PATCH] Remove codepaths for unsupported Octave versions

---
 matlab/dynare.m             | 6 +-----
 matlab/gensylv/sylvester3.m | 6 +-----
 matlab/plot_icforecast.m    | 5 -----
 matlab/warning_config.m     | 6 +-----
 4 files changed, 3 insertions(+), 20 deletions(-)

diff --git a/matlab/dynare.m b/matlab/dynare.m
index 616db198a..05c3d9ac5 100644
--- a/matlab/dynare.m
+++ b/matlab/dynare.m
@@ -81,11 +81,7 @@ more off
 
 % sets default format for save() command
 if isoctave
-    if octave_ver_less_than('3.8')
-        default_save_options('-mat')
-    else
-        save_default_options('-mat')
-    end
+    save_default_options('-mat')
 end
 
 if nargin < 1
diff --git a/matlab/gensylv/sylvester3.m b/matlab/gensylv/sylvester3.m
index 4e0ab85ee..29812c694 100644
--- a/matlab/gensylv/sylvester3.m
+++ b/matlab/gensylv/sylvester3.m
@@ -38,11 +38,7 @@ end
 if isoctave
     [aa,bb,qq,zz]=qz(full(a),full(b));
     for j=1:p
-        if octave_ver_less_than('3.4.0')
-            d(:,:,j)=qq'*d(:,:,j)*u;
-        else
-            d(:,:,j)=qq*d(:,:,j)*u;
-        end
+        d(:,:,j)=qq*d(:,:,j)*u;
     end
 else
     [aa,bb,qq,zz]=qz(full(a),full(b),'real'); % available in Matlab version 6.0
diff --git a/matlab/plot_icforecast.m b/matlab/plot_icforecast.m
index f6eb63e3e..862a101cd 100644
--- a/matlab/plot_icforecast.m
+++ b/matlab/plot_icforecast.m
@@ -27,11 +27,6 @@ function plot_icforecast(Variables,periods,options_)
 % You should have received a copy of the GNU General Public License
 % along with Dynare.  If not, see <http://www.gnu.org/licenses/>.
 
-if isoctave && octave_ver_less_than('3.4.0')
-    % The set() command on the handle returned by area() crashes in Octave 3.2
-    error('plot_conditional_forecast: you need Octave >= 3.4 (because of a bug in older versions)')
-end
-
 load conditional_forecasts;
 
 forecast_periods = length(forecasts.cond.Mean.(Variables{1}));
diff --git a/matlab/warning_config.m b/matlab/warning_config.m
index a7cbaab92..c1abf3d85 100644
--- a/matlab/warning_config.m
+++ b/matlab/warning_config.m
@@ -34,11 +34,7 @@ warning('on', 'backtrace');
 
 if isoctave
     warning('off', 'Octave:separator-insert');
-    if octave_ver_less_than('4.0')
-        warning('off', 'Octave:matlab-incompatible');
-    else
-        warning('off', 'Octave:language-extension');
-    end
+    warning('off', 'Octave:language-extension');
     warning('off', 'Octave:single-quote-string');
     warning('off', 'Octave:missing-semicolon');
     warning('off', 'Octave:empty-list-elements');