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Compilation to/from memory

Description
• ugcompfrmem.mos, ugcompfrmemcs.cs: Compiling a model held in memory
• ugcompmem.mos, ugcompmemcs.cs: Compiling a model to memory (requires burglar2.mos, burglar.dat)
Further explanation of this example: 'Mosel User Guide', Section 17.1 Generalized file handling

Source Files
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Data Files

ugcompfrmemcs.cs

/********************************************************
Mosel User Guide Example Problems
=================================

file ugcompfrmem.cs

Retrieve model output via callback-style functionality.

(c) 2013 Fair Isaac Corporation
author: S.Heipcke, Mar. 2013
J.Farmer, Mar. 2021
********************************************************/

using System;
using System.IO;
using Mosel;

namespace ugcompfrmem.cs {

public class ugcompfrmem {
/// <summary>
/// String containing the model
/// </summary>
const string modelSource=
"model Burglar\n"+
"uses 'mmxprs'\n"+

"declarations\n"+
" WTMAX = 102                    ! Maximum weight allowed\n"+
" ITEMS = 1..8                   ! Index range for items\n"+
" VALUE: array(ITEMS) of real    ! Value of items\n"+
" WEIGHT: array(ITEMS) of real   ! Weight of items\n"+
" take: array(ITEMS) of mpvar    ! 1 if we take item i; 0 otherwise\n"+
"end-declarations\n"+

"VALUE :: [15, 100, 90, 60, 40, 15, 10,  1]\n"+
"WEIGHT:: [ 2,  20, 20, 30, 40, 30, 60, 10]\n"+

"! Objective: maximize total value\n"+
"MaxVal:= sum(i in ITEMS) VALUE(i)*take(i)\n"+

"! Weight restriction\n"+
"sum(i in ITEMS) WEIGHT(i)*take(i) <= WTMAX\n"+
"! All variables are 0/1\n"+
"forall(i in ITEMS) take(i) is_binary\n"+

"maximize(MaxVal)                ! Solve the problem\n"+

"! Print out the solution\n"+
"writeln(\"Solution:\\n Objective: \", getobjval)\n"+
"forall(i in ITEMS)  writeln(' take(', i, '): ', getsol(take(i)))\n"+

"end-model";

/// <summary>
/// Main entry point for the application
/// </summary>
static void Main(string[] args) {
// Initialize Mosel
XPRM mosel = XPRM.Init();

// Compile the Mosel model to a physical file
FileStream file= new FileStream("burglar2.bim", FileMode.Create,
FileAccess.Write);
file.Close();

`