maint: Merge default to bytecode-interpreter

Author: arungiridhar

etc/NEWS.10.md

@@ -191,6 +191,10 @@ from Octave 10.
   functions.  Specific examples of this can be found in the "Minimizers"
   section of the Octave manual.
 
+- The unsupported and unnecessary `load` options of `-force` and `-import` have
+  been removed.  If legacy m-files are still invoking `load` with these options
+  update the code and remove them. 
+
 ### Build system
 
 - Octave now requires a C++ compiler that is compliant with C++17 (preferably

libinterp/corefcn/load-save.cc

@@ -1233,17 +1233,6 @@ load_save_system::load (const octave_value_list& args, int nargout)
         {
           format = MAT_BINARY;
         }
-      // FIXME: Unsupported and silently ignored.  Can we just delete this?
-      else if (argv[i] == "-force" || argv[i] == "-f")
-        {
-          // Silently ignore this
-          // warning ("load: -force ignored");
-        }
-      // FIXME: Unsupported and ignored.  Can we just delete this?
-      else if (argv[i] == "-import" || argv[i] == "-i")
-        {
-          warning ("load: -import ignored");
-        }
       else if (argv[i] == "-list" || argv[i] == "-l")
         {
           list_only = true;

scripts/plot/draw/hist.m

@@ -164,10 +164,10 @@
       endif
       x = x.';  # Convert to matrix
     elseif (isvector (x))
-      equal_bin_spacing = strcmp (typeinfo (x), "range");
+      equal_bin_spacing = ! isempty (strfind (typeinfo (x), "range"));
       if (! equal_bin_spacing)
         diffs = diff (x);
-        if (all (diffs == diffs(1)))
+        if (! any (abs ((diffs - diffs(1))) > eps (max (abs (x)))))
           equal_bin_spacing = true;
         endif
       endif