/// <summary>
/// Determines the number of days from one DayOfWeek till the next.
/// </summary>
/// <param name="self">the starting DayOfWeek</param>
/// <param name="next">The ending DayOfWeek</param>
/// <returns>the number of days from <paramref name="self"/> to <paramref name="next"/></returns>
/// <exception cref="ArgumentOutOfRangeException">If either DayOfWeek is not
/// <see cref="DayOfWeekExtensions.InRange"/></exception>
/// <example>
/// Debug.Assert(DayOfWeek.Monday.DaysTill(DayOfWeek.Tuesday) == 1);
/// </example>
public static int DaysTill(this DayOfWeek self, DayOfWeek next)
{
self.CheckRange();
next.CheckRange();
return DaysBetween((int)next, (int)self);
}
/// <summary>
/// Determines the number of days since one DayOfWeek since the previous.
/// </summary>
/// <param name="self">the starting DayOfWeek</param>
/// <param name="prev">The previous DayOfWeek</param>
/// <returns>the number of days since <paramref name="self"/> to <paramref name="prev"/></returns>
/// <exception cref="ArgumentOutOfRangeException">If either DayOfWeek is not
/// <see cref="DayOfWeekExtensions.InRange"/></exception>
/// <example>
/// Debug.Assert(DayOfWeek.Tuesday.DaysSince(DayOfWeek.Monday) == 1);
/// </example>
public static int DaysSince(this DayOfWeek self, DayOfWeek prev)
{
self.CheckRange();
prev.CheckRange();
return DaysBetween((int)self, (int)prev);
}
/// <summary>
/// Determines the number of days since one DayOfWeek since the previous.
/// </summary>
/// <param name="self">the starting DayOfWeek</param>
/// <param name="prev">The previous DayOfWeek</param>
/// <returns>the number of days since <paramref name="self" /> to <paramref name="prev" /></returns>
/// <exception cref="ArgumentOutOfRangeException">
/// If either DayOfWeek is not
/// <see cref="DayOfWeekExtensions.InRange" />
/// </exception>
/// <example>
/// Debug.Assert(DayOfWeek.Tuesday.DaysSince(DayOfWeek.Monday) == 1);
/// </example>
public static int DaysSince(this DayOfWeek self, DayOfWeek prev)
{
self.CheckRange();
prev.CheckRange();
return(DaysBetween((int)self, (int)prev));
}
/// <summary>
/// Determines the number of days from one DayOfWeek till the next.
/// </summary>
/// <param name="self">the starting DayOfWeek</param>
/// <param name="next">The ending DayOfWeek</param>
/// <returns>the number of days from <paramref name="self" /> to <paramref name="next" /></returns>
/// <exception cref="ArgumentOutOfRangeException">
/// If either DayOfWeek is not
/// <see cref="DayOfWeekExtensions.InRange" />
/// </exception>
/// <example>
/// Debug.Assert(DayOfWeek.Monday.DaysTill(DayOfWeek.Tuesday) == 1);
/// </example>
public static int DaysTill(this DayOfWeek self, DayOfWeek next)
{
self.CheckRange();
next.CheckRange();
return(DaysBetween((int)next, (int)self));
}
/// <summary>
/// Determines the number of days since one DayOfWeek since the previous.
/// </summary>
/// <param name="dt">the starting DayOfWeek</param>
/// <param name="prevDoW">The previous DayOfWeek</param>
/// <returns>the number of days since <paramref name="dt"/> to <paramref name="prevDoW"/></returns>
/// <exception cref="ArgumentOutOfRangeException">If either DayOfWeek is not
/// <see cref="InRange"/></exception>
/// <example>
/// Debug.Assert(DayOfWeek.Tuesday.DaysSince(DayOfWeek.Monday) == 1);
/// </example>
public static int DaysSince(this DayOfWeek dt, DayOfWeek prevDoW)
{
dt.CheckRange();
prevDoW.CheckRange();
return(daysBetween((int)dt, (int)prevDoW));
}
public static int DaysTill(this DayOfWeek dt, DayOfWeek nextDoW)
{
dt.CheckRange();
nextDoW.CheckRange();
return(daysBetween((int)nextDoW, (int)dt));
}