/// <summary>
/// Returns true iff exactly one argument is set for this solver using SetCbcMainArgs,
/// and that argument is "-branchAndBound".
/// </summary>
/// <param name="solver"></param>
/// <returns></returns>
public static bool UseBranchAndBound(this COIN.OsiCbcSolverInterface solver)
{
string[] args = solver.GetCbcSolverArgs();
if (args.Length == 1 && string.Equals(args[0], "-branchAndBound", StringComparison.CurrentCultureIgnoreCase))
{
return(true);
}
return(false);
}
/// <summary>
/// Returns the array of arguments to be used when solving using an instance of OsiCbcSolverInterface.
/// Returns an empty array if no arguments were found.
/// See also Sonnet.Solve(..)
/// </summary>
/// <param name="solver">The OsiCbcSolverInterface instance.</param>
/// <returns>The arguments for CbcMain1(..).</returns>
public static string[] GetCbcSolverArgs(this COIN.OsiCbcSolverInterface solver)
{
if (cbcSolverArgs.TryGetValue(solver, out var result))
{
return(result.ToArray());
}
else
{
return(new string[0]);
}
}
/// <summary>
/// Adds one or more args to the array of arguments to be used when solving using an instance of OsiCbcSolverInterface.
/// The final list of arguments passed to CbcMain is [SolverArgs] -solve -quit
/// See also Sonnet.Solve(..) ///
/// </summary>
/// <param name="solver">The OsiCbcSolverInterface instance.</param>
/// <param name="args">The list of arguments added for CbcMain1(..)</param>
public static void AddCbcSolverArgs(this COIN.OsiCbcSolverInterface solver, params string[] args)
{
Ensure.NotNull(args);
// Already have some args for this solver?
List <string> result;
if (!cbcSolverArgs.TryGetValue(solver, out result))
{
result = new List <string>();
cbcSolverArgs[solver] = result;
}
result.AddRange(args);
}
/// <summary>
/// Sets the array of arguments to be used when solving using an instance of OsiCbcSolverInterface.
/// See also Sonnet.Solve(..)
/// </summary>
/// <param name="solver">The OsiCbcSolverInterface instance.</param>
/// <param name="args">The arguments for CbcMain1(..).</param>
public static void SetCbcSolverArgs(this COIN.OsiCbcSolverInterface solver, params string [] args)
{
cbcSolverArgs[solver] = args;
}
