/// <summary>
/// Attempts to create a <see cref="LinearConstraint"/>
/// from a <see cref="System.String"/> representation.
/// </summary>
///
/// <param name="str">The string containing the constraint in textual form.</param>
/// <param name="function">The objective function to which this constraint refers to.</param>
/// <param name="constraint">The resulting constraint, if it could be parsed.</param>
/// <param name="culture">The culture information specifying how
/// numbers written in the <paramref name="constraint"/> should
/// be parsed. Default is CultureInfo.InvariantCulture.</param>
///
/// <returns><c>true</c> if the function could be parsed
/// from the string, <c>false</c> otherwise.</returns>
///
public static bool TryParse(string str, CultureInfo culture,
IObjectiveFunction function, out LinearConstraint constraint)
{
// TODO: implement this method without the try-catch block.
try
{
constraint = new LinearConstraint(function, str, culture);
}
catch (FormatException)
{
constraint = null;
return(false);
}
return(true);
}
/// <summary>
/// Attempts to create a <see cref="LinearConstraint"/>
/// from a <see cref="System.String"/> representation.
/// </summary>
///
/// <param name="str">The string containing the constraint in textual form.</param>
/// <param name="function">The objective function to which this constraint refers to.</param>
/// <param name="constraint">The resulting constraint, if it could be parsed.</param>
///
/// <returns><c>true</c> if the function could be parsed
/// from the string, <c>false</c> otherwise.</returns>
///
public static bool TryParse(string str,
IObjectiveFunction function, out LinearConstraint constraint)
{
return(TryParse(str, CultureInfo.InvariantCulture, function, out constraint));
}