added directory for examples as well as some examples pulled from FPGA...

added directory for examples as well as some examples pulled from FPGA presentation, added example for quadratic roots problem solved using predicate subtyping which typechecks and appears to give proper answers when compared to matlab roots fcn

git-svn-id: https://groke.mcmaster.ca/svn/grad/colin/trunk/TableTool@6762 57e6efec-57d4-0310-aeb1-a6c144bb1a8b

@PVS_checker/pvs_check_for_imports.m

@@ -10,8 +10,26 @@
 % Author: Colin Eles elesc@mcmaster.ca
 % Organization: McMaster Centre for Software Certification
 function string = pvs_check_for_imports(object)
+
+
+
 [string,found] = object.pvs_check_for_imports_g(object.data.Grid2,{});
 [string2,found2] = object.pvs_check_for_imports_g(object.data.Grid1,found);
+
+% check for imports in the inputs field
+
+
+
+hashtable = {{'sqrt', 'reals@sqrt'} {'sin', 'trig@trig_basic'} {'cos', 'trig@trig_basic'} {'tan', 'trig@trig_basic'}};
+for k=1:size(hashtable,2)
+            if ~isempty(regexp(object.data.function_inputs,hashtable{k}(1),'once'))
+                if (~any(ismember(found,hashtable{k}(1))))
+                string = [string 'IMPORTING ' char(hashtable{k}(2)) sprintf('\n')];
+                found = [found hashtable{k}(1)];
+                end
+            end    
+        end
+        
 string = [string string2];
 end