private string FindLink(DeviseChangeRateTuple source, DeviseChangeRateTuple cible)
{
if (source.DeviseSource == cible.DeviseCible || source.DeviseSource == cible.DeviseSource)
{
return(source.DeviseSource);
}
if (source.DeviseCible == cible.DeviseCible || source.DeviseCible == cible.DeviseSource)
{
return(source.DeviseCible);
}
return(null);
}
/// <summary>
/// Apply an inverted change rate on a value
/// </summary>
/// <param name="dcrt">Change rate</param>
/// <param name="val">Value to conver</param>
/// <returns>The computed value depending on change rate</returns>
public static double ApplyInvertRate(DeviseChangeRateTuple dcrt, double val)
{
// A B T : A(T) = B*(1/T)
return(val * 1 / dcrt.DeviseChangeRate);
}
public static double ApplyRate(DeviseChangeRateTuple dcrt, double val)
{
// A B T : B(T) = A*T
return(val * dcrt.DeviseChangeRate);
}
public bool EqualsInvertedDevises(DeviseChangeRateTuple dtc)
{
return(dtc.DeviseSource == this.DeviseCible && dtc.DeviseCible == this.DeviseSource);
}