Structure updated and intqpipopt files added

1 files changed, 79 insertions, 0 deletions

diff --git a/newstructure/demos/mps_cbcintlinprog.sci b/newstructure/demos/mps_cbcintlinprog.sci
new file mode 100644
index 0000000..eef8b68
--- /dev/null
+++ b/newstructure/demos/mps_cbcintlinprog.sci
@@ -0,0 +1,79 @@
+// Code Authors: Akshay Miterani and Pranav Deshpande
+// Organization: FOSSEE, IIT Bombay
+// Email: toolbox@scilab.in
+
+function [xopt,fopt,status,output] = cbcmpsintlinprog(varargin)
+    // Sci File Wrapper for the mps_cbcintlinprog.cpp file
+    
+    // Number of input and output arguments
+    [nOutput, nInput] = argn();
+    
+    // To check the number of arguments given by the user
+    if (nInput<1 | nInput>2) then
+        error(999, 'Check the number of input arguments!');
+    end
+    
+    mpsFile = varargin(1);
+    optval = [0,0,0,0];
+    if(nInput==2) then
+        options=varargin(2);
+        if length(options) == 0 then
+            optval = [0 0 0 0];
+        else
+            optval = [0 0 0 0];
+            for i=1:2:length(options)
+                select options(i)
+                    case 'IntegerTolerance' then
+                        optval(1) = options(i+1);
+                    case 'MaxNodes' then
+                        optval(2) = options(i+1);
+                    case 'MaxTime' then
+                        optval(3) = options(i+1);
+                    case 'AllowableGap' then
+                        optval(4) = options(i+1);
+                    else
+                        error(999, 'Unknown string argument passed.');
+                    end
+            end
+        end
+    end
+
+    [xopt,fopt,status,nodes,nfpoints,L,U,niter] = sci_mps_intlinprog(mpsFile, optval)
+
+    output = struct("relativegap"       , [],..
+                    "absolutegap"       , [],..
+                    "numnodes"          , [],..
+                    "numfeaspoints"     , [],..
+                    "numiterations"		, [],..
+                    "message"           , '');
+                    
+    output.numnodes = [nodes];
+    output.numfeaspoints = [nfpoints];
+    output.numiterations = [niter];
+    output.relativegap = (U-L)/(abs(U)+1);
+    output.absolutegap = (U-L);
+    
+    select status
+
+    case 0 then
+        output.message="Optimal Solution"
+    case 1 then 
+        output.message="Primal Infeasible"
+    case 2 then 
+        output.message="Solution Limit is reached"
+    case 3 then
+        output.message="Node Limit is reached"
+    case 4 then 
+        output.message="Numerical Difficulties"
+    case 5 then 
+        output.message="Time Limit Reached"
+    case 6 then 
+        output.message="Continuous Solution Unbounded"
+    case 7 then 
+        output.message="Dual Infeasible"
+    else
+        output.message="Invalid status returned. Notify the Toolbox authors"
+        break;
+    end
+
+endfunction