The OpenD Programming Language

Interval

Represents an interval of time.

An Interval has a starting point and an end point. The interval of time is therefore the time starting at the starting point up to, but not including, the end point. e.g.


[January 5th, 2010 - March 10th, 2010)
[05:00:30 - 12:00:00)
[1982-01-04T08:59:00 - 2010-07-04T12:00:00)

A range can be obtained from an Interval, allowing iteration over that interval, with the exact time points which are iterated over depending on the function which generates the range.

struct Interval (

TP

) {

this(TP begin, U end);

this(TP begin, D duration);

Interval opAssign(Interval rhs);

Interval opAssign(Interval rhs);

TP begin [@property getter];

TP begin [@property setter];

TP end [@property getter];

TP end [@property setter];

auto length [@property getter];

bool empty [@property getter];

bool contains(TP timePoint);

bool contains(Interval interval);

bool contains(PosInfInterval!TP interval);

bool contains(NegInfInterval!TP interval);

bool isBefore(TP timePoint);

bool isBefore(Interval interval);

bool isBefore(PosInfInterval!TP interval);

bool isBefore(NegInfInterval!TP interval);

bool isAfter(TP timePoint);

bool isAfter(Interval interval);

bool isAfter(PosInfInterval!TP interval);

bool isAfter(NegInfInterval!TP interval);

bool intersects(Interval interval);

bool intersects(PosInfInterval!TP interval);

bool intersects(NegInfInterval!TP interval);

Interval intersection(Interval interval);

Interval intersection(PosInfInterval!TP interval);

Interval intersection(NegInfInterval!TP interval);

bool isAdjacent(Interval interval);

bool isAdjacent(PosInfInterval!TP interval);

bool isAdjacent(NegInfInterval!TP interval);

Interval merge(Interval interval);

PosInfInterval!TP merge(PosInfInterval!TP interval);

NegInfInterval!TP merge(NegInfInterval!TP interval);

Interval span(Interval interval);

PosInfInterval!TP span(PosInfInterval!TP interval);

NegInfInterval!TP span(NegInfInterval!TP interval);

void shift(D duration);

static if(__traits(compiles, begin.add!"months"(1)) && __traits(compiles, begin.add!"years"(1)))

void shift(T years, T months, AllowDayOverflow allowOverflow);

void expand(D duration, Direction dir);

static if(__traits(compiles, begin.add!"months"(1)) && __traits(compiles, begin.add!"years"(1)))

void expand(T years, T months, AllowDayOverflow allowOverflow, Direction dir);

IntervalRange!(TP, Direction.fwd) fwdRange(TP delegate(scope const TP) func, PopFirst popFirst);

IntervalRange!(TP, Direction.bwd) bwdRange(TP delegate(scope const TP) func, PopFirst popFirst);

string toString();

void toString(Writer w);

}

Constructors

this this(TP begin, U end)
this this(TP begin, D duration)

Members

Functions

bwdRange IntervalRange!(TP, Direction.bwd) bwdRange(TP delegate(scope const TP) func, PopFirst popFirst): Returns a range which iterates backwards over the interval, starting at end, using func to generate each successive time point.
contains bool contains(TP timePoint): Whether the given time point is within this interval.
contains bool contains(Interval interval): Whether the given interval is completely within this interval.
contains bool contains(PosInfInterval!TP interval): Whether the given interval is completely within this interval.
contains bool contains(NegInfInterval!TP interval): Whether the given interval is completely within this interval.
expand void expand(D duration, Direction dir): Expands the interval forwards and/or backwards in time. Effectively, it does begin -= duration and/or end += duration. Whether it expands forwards and/or backwards in time is determined by dir.
expand void expand(T years, T months, AllowDayOverflow allowOverflow, Direction dir): Expands the interval forwards and/or backwards in time. Effectively, it subtracts the given number of months/years from begin and adds them to end. Whether it expands forwards and/or backwards in time is determined by dir.
fwdRange IntervalRange!(TP, Direction.fwd) fwdRange(TP delegate(scope const TP) func, PopFirst popFirst): Returns a range which iterates forward over the interval, starting at begin, using func to generate each successive time point.
intersection Interval intersection(Interval interval): Returns the intersection of two intervals
intersection Interval intersection(PosInfInterval!TP interval): Returns the intersection of two intervals
intersection Interval intersection(NegInfInterval!TP interval): Returns the intersection of two intervals
intersects bool intersects(Interval interval): Whether the given interval overlaps this interval.
intersects bool intersects(PosInfInterval!TP interval): Whether the given interval overlaps this interval.
intersects bool intersects(NegInfInterval!TP interval): Whether the given interval overlaps this interval.
isAdjacent bool isAdjacent(Interval interval): Whether the given interval is adjacent to this interval.
isAdjacent bool isAdjacent(PosInfInterval!TP interval): Whether the given interval is adjacent to this interval.
isAdjacent bool isAdjacent(NegInfInterval!TP interval): Whether the given interval is adjacent to this interval.
isAfter bool isAfter(TP timePoint): Whether this interval is after the given time point.
isAfter bool isAfter(Interval interval): Whether this interval is after the given interval and does not intersect it.
isAfter bool isAfter(PosInfInterval!TP interval): Whether this interval is after the given interval and does not intersect it.
isAfter bool isAfter(NegInfInterval!TP interval): Whether this interval is after the given interval and does not intersect it.
isBefore bool isBefore(TP timePoint): Whether this interval is before the given time point.
isBefore bool isBefore(Interval interval): Whether this interval is before the given interval and does not intersect with it.
isBefore bool isBefore(PosInfInterval!TP interval): Whether this interval is before the given interval and does not intersect with it.
isBefore bool isBefore(NegInfInterval!TP interval): Whether this interval is before the given interval and does not intersect with it.
merge Interval merge(Interval interval): Returns the union of two intervals
merge PosInfInterval!TP merge(PosInfInterval!TP interval): Returns the union of two intervals
merge NegInfInterval!TP merge(NegInfInterval!TP interval): Returns the union of two intervals
opAssign Interval opAssign(Interval rhs)
opAssign Interval opAssign(Interval rhs)
shift void shift(D duration): Shifts the interval forward or backwards in time by the given duration (a positive duration shifts the interval forward; a negative duration shifts it backward). Effectively, it does begin += duration and end += duration.
shift void shift(T years, T months, AllowDayOverflow allowOverflow): Shifts the interval forward or backwards in time by the given number of years and/or months (a positive number of years and months shifts the interval forward; a negative number shifts it backward). It adds the years the given years and months to both begin and end. It effectively calls add!"years"() and then add!"months"() on begin and end with the given number of years and months.
span Interval span(Interval interval): Returns an interval that covers from the earliest time point of two intervals up to (but not including) the latest time point of two intervals.
span PosInfInterval!TP span(PosInfInterval!TP interval): Returns an interval that covers from the earliest time point of two intervals up to (but not including) the latest time point of two intervals.
span NegInfInterval!TP span(NegInfInterval!TP interval): Returns an interval that covers from the earliest time point of two intervals up to (but not including) the latest time point of two intervals.
toString string toString()
void toString(Writer w): Converts this interval to a string.

Properties

begin TP begin [@property getter]: The starting point of the interval. It is included in the interval.
begin TP begin [@property setter]: The starting point of the interval. It is included in the interval.
empty bool empty [@property getter]: Whether the interval's length is 0, that is, whether begin == end.
end TP end [@property getter]: The end point of the interval. It is excluded from the interval.
end TP end [@property setter]: The end point of the interval. It is excluded from the interval.
length auto length [@property getter]: Returns the duration between begin and end.

Meta

Source

See Implementation

std datetime interval aliases

PopFirst

enums

Direction

functions

structs