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std.datetime.interval.is_before - multiple declarations

Function Interval.isBefore

Whether this interval is before the given interval and does not intersect with it.

Always returns false (unless this interval is empty) because a finite interval can never be before an interval beginning at negative infinity.

Prototype

bool isBefore(
  NegInfInterval!TP interval
) const pure;

Parameters

NameDescription
interval The interval to check for against this interval.

Throws

DateTimeException if this interval is empty.

Examples

assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isBefore(
            NegInfInterval!Date(Date(1996, 5, 4))));

Function Interval.isBefore

Whether this interval is before the given interval and does not intersect with it.

Prototype

bool isBefore(
  PosInfInterval!TP interval
) const pure;

Parameters

NameDescription
interval The interval to check for against this interval.

Throws

DateTimeException if this interval is empty.

Examples

assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isBefore(
            PosInfInterval!Date(Date(1999, 5, 4))));

assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isBefore(
            PosInfInterval!Date(Date(2013, 3, 7))));

Function Interval.isBefore

Whether this interval is before the given interval and does not intersect with it.

Prototype

bool isBefore(
  Interval interval
) const pure;

Parameters

NameDescription
interval The interval to check for against this interval.

Throws

DateTimeException if either interval is empty.

Examples

assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isBefore(
            Interval!Date(Date(1990, 7, 6), Date(2000, 8, 2))));

assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isBefore(
            Interval!Date(Date(1999, 1, 12), Date(2011, 9, 17))));

assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isBefore(
            Interval!Date(Date(2012, 3, 1), Date(2013, 5, 1))));

Function Interval.isBefore

Whether this interval is before the given time point.

Prototype

bool isBefore(
  TP timePoint
) const pure;

Parameters

NameDescription
timePoint The time point to check whether this interval is before it.

Throws

DateTimeException if this interval is empty.

Examples

assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isBefore(
            Date(1994, 12, 24)));

assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isBefore(
            Date(2000, 1, 5)));

assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isBefore(
            Date(2012, 3, 1)));

Authors

Jonathan M Davis and Kato Shoichi

License

Boost License 1.0.

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