scala.collection.parallel.mutable
Standard accessor task that iterates over the elements of the collection.
Performs two tasks in parallel, and waits for both to finish.
Sequentially performs one task after another.
adds a single element to this shrinkable collection.
adds a single element to this shrinkable collection.
the element to add.
the shrinkable collection itself
Removes a single element from this shrinkable collection.
Removes a single element from this shrinkable collection.
the element to remove.
the shrinkable collection itself
Clears the shrinkable collection's contents.
Clears the shrinkable collection's contents. After this operation, the shrinkable collection is empty.
The size of this shrinkable collection.
The size of this shrinkable collection.
Note: will not terminate for infinite-sized collections.
the number of elements in this shrinkable collection.
Creates a new parallel iterator used to traverse the elements of this parallel collection.
Creates a new parallel iterator used to traverse the elements of this parallel collection.
This iterator is more specific than the iterator of the returned by iterator, and augmented
with additional accessor and transformer methods.
a parallel iterator
Defines the prefix of this object's toString representation.
Defines the prefix of this object's toString representation.
a string representation which starts the result of toString
applied to this shrinkable collection. By default the string prefix is the
simple name of the collection class shrinkable collection.
Test two objects for inequality.
Test two objects for inequality.
true if !(this == that), false otherwise.
Equivalent to x.hashCode except for boxed numeric types and null.
Equivalent to x.hashCode except for boxed numeric types and null.
For numerics, it returns a hash value which is consistent
with value equality: if two value type instances compare
as true, then ## will produce the same hash value for each
of them.
For null returns a hashcode where null.hashCode throws a
NullPointerException.
a hash value consistent with ==
Computes the intersection between this set and another set.
Computes the intersection between this set and another set.
Note: Same as intersect.
the set to intersect with.
a new set consisting of all elements that are both in this
set and in the given set that.
The difference of this set and another set.
The difference of this set and another set.
Note: Same as diff.
the set of elements to exclude.
a set containing those elements of this
set that are not also contained in the given set that.
[use case]
the element type of the returned collection.
the traversable to append.
a new shrinkable collection which contains all elements of this shrinkable collection
followed by all elements of that.
adds all elements produced by a TraversableOnce to this shrinkable collection.
adds all elements produced by a TraversableOnce to this shrinkable collection.
the shrinkable collection itself.
adds two or more elements to this shrinkable collection.
adds two or more elements to this shrinkable collection.
the first element to add.
the second element to add.
the remaining elements to add.
the shrinkable collection itself
Removes all elements produced by an iterator from this shrinkable collection.
Removes all elements produced by an iterator from this shrinkable collection.
the shrinkable collection itself
Removes two or more elements from this shrinkable collection.
Removes two or more elements from this shrinkable collection.
the first element to remove.
the second element to remove.
the remaining elements to remove.
the shrinkable collection itself
Applies a binary operator to a start value and all elements of this shrinkable collection, going left to right.
Applies a binary operator to a start value and all elements of this shrinkable collection, going left to right.
Note: /: is alternate syntax for foldLeft; z /: xs is the same as
xs foldLeft z.
Examples:
Note that the folding function used to compute b is equivalent to that used to compute c.
scala> val a = LinkedList(1,2,3,4)
a: scala.collection.mutable.LinkedList[Int] = LinkedList(1, 2, 3, 4)
scala> val b = (5 /: a)(_+_)
b: Int = 15
scala> val c = (5 /: a)((x,y) => x + y)
c: Int = 15
Note: will not terminate for infinite-sized collections.
Note: might return different results for different runs, unless the underlying collection type is ordered. or the operator is associative and commutative.
the start value.
the binary operator.
the result of inserting op between consecutive elements of this shrinkable collection,
going left to right with the start value z on the left:
op(...op(op(z, x1), x2), ..., xn)
where x1, ..., xn are the elements of this shrinkable collection.
A syntactic sugar for out of order folding.
A syntactic sugar for out of order folding. See fold.
Example:
scala> val a = LinkedList(1,2,3,4)
a: scala.collection.mutable.LinkedList[Int] = LinkedList(1, 2, 3, 4)
scala> val b = (a /:\ 5)(_+_)
b: Int = 15
Applies a binary operator to all elements of this shrinkable collection and a start value, going right to left.
Applies a binary operator to all elements of this shrinkable collection and a start value, going right to left.
Note: :\ is alternate syntax for foldRight; xs :\ z is the same as
xs foldRight z.
Note: will not terminate for infinite-sized collections.
Note: might return different results for different runs, unless the underlying collection type is ordered. or the operator is associative and commutative.
Examples:
Note that the folding function used to compute b is equivalent to that used to compute c.
scala> val a = LinkedList(1,2,3,4)
a: scala.collection.mutable.LinkedList[Int] = LinkedList(1, 2, 3, 4)
scala> val b = (a :\ 5)(_+_)
b: Int = 15
scala> val c = (a :\ 5)((x,y) => x + y)
c: Int = 15
the start value
the binary operator
the result of inserting op between consecutive elements of this shrinkable collection,
going right to left with the start value z on the right:
op(x1, op(x2, ... op(xn, z)...))
where x1, ..., xn are the elements of this shrinkable collection.
Test two objects for equality.
Test two objects for equality.
The expression x == that is equivalent to if (x eq null) that eq null else x.equals(that).
true if the receiver object is equivalent to the argument; false otherwise.
Aggregates the results of applying an operator to subsequent elements.
Aggregates the results of applying an operator to subsequent elements.
This is a more general form of fold and reduce. It has similar semantics, but does
not require the result to be a supertype of the element type. It traverses the elements in
different partitions sequentially, using seqop to update the result, and then
applies combop to results from different partitions. The implementation of this
operation may operate on an arbitrary number of collection partitions, so combop
may be invoked arbitrary number of times.
For example, one might want to process some elements and then produce a Set. In this
case, seqop would process an element and append it to the list, while combop
would concatenate two lists from different partitions together. The initial value
z would be an empty set.
pc.aggregate(Set[Int]())(_ += process(_), _ ++ _)
Another example is calculating geometric mean from a collection of doubles (one would typically require big doubles for this).
the type of accumulated results
the initial value for the accumulated result of the partition - this
will typically be the neutral element for the seqop operator (e.g.
Nil for list concatenation or 0 for summation)
an operator used to accumulate results within a partition
an associative operator used to combine results from different partitions
Composes two instances of Function1 in a new Function1, with this function applied first.
Composes two instances of Function1 in a new Function1, with this function applied first.
the result type of function g
a function R => A
a new function f such that f(x) == g(apply(x))
Tests if some element is contained in this set.
Tests if some element is contained in this set.
This method is equivalent to contains. It allows sets to be interpreted as predicates.
the element to test for membership.
true if elem is contained in this set, false otherwise.
Cast the receiver object to be of type T0.
Cast the receiver object to be of type T0.
Note that the success of a cast at runtime is modulo Scala's erasure semantics.
Therefore the expression 1.asInstanceOf[String] will throw a ClassCastException at
runtime, while the expression List(1).asInstanceOf[List[String]] will not.
In the latter example, because the type argument is erased as part of compilation it is
not possible to check whether the contents of the list are of the requested type.
the receiver object.
if the receiver object is not an instance of the erasure of type T0.
Create a copy of the receiver object.
Create a copy of the receiver object.
The default implementation of the clone method is platform dependent.
a copy of the receiver object.
not specified by SLS as a member of AnyRef
[use case]
the element type of the returned collection.
the partial function which filters and maps the shrinkable collection.
a new shrinkable collection resulting from applying the given partial function
pf to each element on which it is defined and collecting the results.
The order of the elements is preserved.
Creates a combiner factory.
Creates a combiner factory. Each combiner factory instance is used once per invocation of a parallel transformer method for a single collection.
The default combiner factory creates a new combiner every time it
is requested, unless the combiner is thread-safe as indicated by its
canBeShared method. In this case, the method returns a factory which
returns the same combiner each time. This is typically done for
concurrent parallel collections, the combiners of which allow
thread safe access.
Composes two instances of Function1 in a new Function1, with this function applied last.
Composes two instances of Function1 in a new Function1, with this function applied last.
the type to which function g can be applied
a function A => T1
a new function f such that f(x) == apply(g(x))
[use case]
the array to fill.
the starting index.
[use case]
the array to fill.
Counts the number of elements in the shrinkable collection which satisfy a predicate.
Counts the number of elements in the shrinkable collection which satisfy a predicate.
the predicate used to test elements.
the number of elements satisfying the predicate p.
Computes the difference of this set and another set.
Computes the difference of this set and another set.
the set of elements to exclude.
a set containing those elements of this
set that are not also contained in the given set that.
Selects all elements except first n ones.
Selects all elements except first n ones.
Note: might return different results for different runs, unless the underlying collection type is ordered.
the number of elements to drop from this shrinkable collection.
a shrinkable collection consisting of all elements of this shrinkable collection except the first n ones, or else the
empty shrinkable collection, if this shrinkable collection has less than n elements.
Drops all elements in the longest prefix of elements that satisfy the predicate, and returns a collection composed of the remaining elements.
Drops all elements in the longest prefix of elements that satisfy the predicate, and returns a collection composed of the remaining elements.
This method will use indexFlag signalling capabilities. This means
that splitters may set and read the indexFlag state.
The index flag is initially set to maximum integer value.
the predicate used to test the elements
a collection composed of all the elements after the longest prefix of elements
in this shrinkable collection that satisfy the predicate pred
Tests whether the argument (arg0) is a reference to the receiver object (this).
Tests whether the argument (arg0) is a reference to the receiver object (this).
The eq method implements an equivalence relation on
non-null instances of AnyRef, and has three additional properties:
x and y of type AnyRef, multiple invocations of
x.eq(y) consistently returns true or consistently returns false.x of type AnyRef, x.eq(null) and null.eq(x) returns false.null.eq(null) returns true. When overriding the equals or hashCode methods, it is important to ensure that their behavior is
consistent with reference equality. Therefore, if two objects are references to each other (o1 eq o2), they
should be equal to each other (o1 == o2) and they should hash to the same value (o1.hashCode == o2.hashCode).
true if the argument is a reference to the receiver object; false otherwise.
Compares this set with another object for equality.
Compares this set with another object for equality.
Note: This operation contains an unchecked cast: if that
is a set, it will assume with an unchecked cast
that it has the same element type as this set.
Any subsequent ClassCastException is treated as a false result.
the other object
true if that is a set which contains the same elements
as this set.
Tests whether a predicate holds for some element of this shrinkable collection.
Tests whether a predicate holds for some element of this shrinkable collection.
This method will use abort signalling capabilities. This means
that splitters may send and read abort signals.
true if p holds for some element, false otherwise
Selects all elements of this shrinkable collection which satisfy a predicate.
Selects all elements of this shrinkable collection which satisfy a predicate.
a new shrinkable collection consisting of all elements of this shrinkable collection that satisfy the given
predicate p. Their order may not be preserved.
Selects all elements of this shrinkable collection which do not satisfy a predicate.
Selects all elements of this shrinkable collection which do not satisfy a predicate.
a new shrinkable collection consisting of all elements of this shrinkable collection that do not satisfy the given
predicate p. Their order may not be preserved.
Called by the garbage collector on the receiver object when there are no more references to the object.
Called by the garbage collector on the receiver object when there are no more references to the object.
The details of when and if the finalize method is invoked, as
well as the interaction between finalize and non-local returns
and exceptions, are all platform dependent.
Finds some element in the collection for which the predicate holds, if such an element exists.
Finds some element in the collection for which the predicate holds, if such an element exists. The element may not necessarily be the first such element in the iteration order.
If there are multiple elements obeying the predicate, the choice is nondeterministic.
This method will use abort signalling capabilities. This means
that splitters may send and read abort signals.
an option value with the element if such an element exists, or None otherwise
[use case]
the element type of the returned collection.
the function to apply to each element.
a new shrinkable collection resulting from applying the given collection-valued function
f to each element of this shrinkable collection and concatenating the results.
Folds the elements of this sequence using the specified associative binary operator.
Folds the elements of this sequence using the specified associative binary operator. The order in which the elements are reduced is unspecified and may be nondeterministic.
Note this method has a different signature than the foldLeft
and foldRight methods of the trait Traversable.
The result of folding may only be a supertype of this parallel collection's
type parameter T.
a type parameter for the binary operator, a supertype of T.
a neutral element for the fold operation, it may be added to the result
an arbitrary number of times, not changing the result (e.g. Nil for list concatenation,
0 for addition, or 1 for multiplication)
a binary operator that must be associative
the result of applying fold operator op between all the elements and z
Applies a binary operator to a start value and all elements of this shrinkable collection, going left to right.
Applies a binary operator to a start value and all elements of this shrinkable collection, going left to right.
Note: will not terminate for infinite-sized collections.
Note: might return different results for different runs, unless the underlying collection type is ordered. or the operator is associative and commutative.
the start value.
the binary operator.
the result of inserting op between consecutive elements of this shrinkable collection,
going left to right with the start value z on the left:
op(...op(z, x1), x2, ..., xn)
where x1, ..., xn are the elements of this shrinkable collection.
Applies a binary operator to all elements of this shrinkable collection and a start value, going right to left.
Applies a binary operator to all elements of this shrinkable collection and a start value, going right to left.
Note: will not terminate for infinite-sized collections.
Note: might return different results for different runs, unless the underlying collection type is ordered. or the operator is associative and commutative.
the start value.
the binary operator.
the result of inserting op between consecutive elements of this shrinkable collection,
going right to left with the start value z on the right:
op(x1, op(x2, ... op(xn, z)...))
where x1, ..., xn are the elements of this shrinkable collection.
Tests whether a predicate holds for all elements of this shrinkable collection.
Tests whether a predicate holds for all elements of this shrinkable collection.
This method will use abort signalling capabilities. This means
that splitters may send and read abort signals.
true if p holds for all elements, false otherwise
Applies a function f to all the elements of shrinkable collection in a sequential order.
Applies a function f to all the elements of shrinkable collection in a sequential order.
the result type of the function applied to each element, which is always discarded
function applied to each element
A representation that corresponds to the dynamic class of the receiver object.
A representation that corresponds to the dynamic class of the receiver object.
The nature of the representation is platform dependent.
a representation that corresponds to the dynamic class of the receiver object.
not specified by SLS as a member of AnyRef
Partitions this shrinkable collection into a map of shrinkable collections according to some discriminator function.
Partitions this shrinkable collection into a map of shrinkable collections according to some discriminator function.
Note: this method is not re-implemented by views. This means when applied to a view it will always force the view and return a new shrinkable collection.
the type of keys returned by the discriminator function.
the discriminator function.
A map from keys to shrinkable collections such that the following invariant holds:
(xs partition f)(k) = xs filter (x => f(x) == k)
That is, every key k is bound to a shrinkable collection of those elements x
for which f(x) equals k.
The hashCode method for reference types.
The hashCode method for reference types. See hashCode in Any.
the hash code value for this object.
Computes the intersection between this set and another set.
Computes the intersection between this set and another set.
the set to intersect with.
a new set consisting of all elements that are both in this
set and in the given set that.
Tests whether the shrinkable collection is empty.
Tests whether the shrinkable collection is empty.
true if the shrinkable collection contains no elements, false otherwise.
Test whether the dynamic type of the receiver object is T0.
Test whether the dynamic type of the receiver object is T0.
Note that the result of the test is modulo Scala's erasure semantics.
Therefore the expression 1.isInstanceOf[String] will return false, while the
expression List(1).isInstanceOf[List[String]] will return true.
In the latter example, because the type argument is erased as part of compilation it is
not possible to check whether the contents of the list are of the specified type.
true if the receiver object is an instance of erasure of type T0; false otherwise.
Denotes whether this parallel collection has strict splitters.
Denotes whether this parallel collection has strict splitters.
This is true in general, and specific collection instances may choose to
override this method. Such collections will fail to execute methods
which rely on splitters being strict, i.e. returning a correct value
in the remaining method.
This method helps ensure that such failures occur on method invocations, rather than later on and in unpredictable ways.
Tests whether this shrinkable collection can be repeatedly traversed.
Tests whether this shrinkable collection can be repeatedly traversed.
true
Creates a new split iterator used to traverse the elements of this collection.
Creates a new split iterator used to traverse the elements of this collection.
By default, this method is implemented in terms of the protected splitter method.
a split iterator
[use case]
the element type of the returned collection.
the function to apply to each element.
a new shrinkable collection resulting from applying the given function
f to each element of this shrinkable collection and collecting the results.
[use case]
the largest element of this shrinkable collection.
[use case]
the smallest element of this shrinkable collection
Displays all elements of this shrinkable collection in a string.
Displays all elements of this shrinkable collection in a string.
a string representation of this shrinkable collection. In the resulting string
the string representations (w.r.t. the method toString)
of all elements of this shrinkable collection follow each other without any
separator string.
Displays all elements of this shrinkable collection in a string using a separator string.
Displays all elements of this shrinkable collection in a string using a separator string.
the separator string.
a string representation of this shrinkable collection. In the resulting string
the string representations (w.r.t. the method toString)
of all elements of this shrinkable collection are separated by the string sep.
List(1, 2, 3).mkString("|") = "1|2|3"
Displays all elements of this shrinkable collection in a string using start, end, and separator strings.
Displays all elements of this shrinkable collection in a string using start, end, and separator strings.
the starting string.
the separator string.
the ending string.
a string representation of this shrinkable collection. The resulting string
begins with the string start and ends with the string
end. Inside, the string representations (w.r.t. the method
toString) of all elements of this shrinkable collection are separated by
the string sep.
List(1, 2, 3).mkString("(", "; ", ")") = "(1; 2; 3)"
Equivalent to !(this eq that).
Equivalent to !(this eq that).
true if the argument is not a reference to the receiver object; false otherwise.
Tests whether the shrinkable collection is not empty.
Tests whether the shrinkable collection is not empty.
true if the shrinkable collection contains at least one element, false otherwise.
Wakes up a single thread that is waiting on the receiver object's monitor.
Wakes up a single thread that is waiting on the receiver object's monitor.
not specified by SLS as a member of AnyRef
Wakes up all threads that are waiting on the receiver object's monitor.
Wakes up all threads that are waiting on the receiver object's monitor.
not specified by SLS as a member of AnyRef
Returns a parallel implementation of this collection.
Returns a parallel implementation of this collection.
For most collection types, this method creates a new parallel collection by copying
all the elements. For these collection, par takes linear time. Mutable collections
in this category do not produce a mutable parallel collection that has the same
underlying dataset, so changes in one collection will not be reflected in the other one.
Specific collections (e.g. ParArray or mutable.ParHashMap) override this default
behaviour by creating a parallel collection which shares the same underlying dataset.
For these collections, par takes constant or sublinear time.
All parallel collections return a reference to themselves.
a parallel implementation of this collection
The default par implementation uses the combiner provided by this method
to create a new parallel collection.
The default par implementation uses the combiner provided by this method
to create a new parallel collection.
a combiner for the parallel collection of type ParRepr
Partitions this shrinkable collection in two shrinkable collections according to a predicate.
Partitions this shrinkable collection in two shrinkable collections according to a predicate.
a pair of shrinkable collections: the first shrinkable collection consists of all elements that
satisfy the predicate p and the second shrinkable collection consists of all elements
that don't. The relative order of the elements in the resulting shrinkable collections
may not be preserved.
[use case]
the product of all elements in this shrinkable collection of numbers of type Int.
Instead of Int, any other type T with an implicit Numeric[T] implementation
can be used as element type of the shrinkable collection and as result type of product.
Examples of such types are: Long, Float, Double, BigInt.
Reduces the elements of this sequence using the specified associative binary operator.
Reduces the elements of this sequence using the specified associative binary operator.
The order in which operations are performed on elements is unspecified and may be nondeterministic.
Note this method has a different signature than the reduceLeft
and reduceRight methods of the trait Traversable.
The result of reducing may only be a supertype of this parallel collection's
type parameter T.
A type parameter for the binary operator, a supertype of T.
A binary operator that must be associative.
The result of applying reduce operator op between all the elements if the collection is nonempty.
if this shrinkable collection is empty.
Optionally applies a binary operator to all elements of this shrinkable collection, going left to right.
Optionally applies a binary operator to all elements of this shrinkable collection, going left to right.
Note: will not terminate for infinite-sized collections.
Note: might return different results for different runs, unless the underlying collection type is ordered. or the operator is associative and commutative.
the binary operator.
an option value containing the result of reduceLeft(op) is this shrinkable collection is nonempty,
None otherwise.
Optionally reduces the elements of this sequence using the specified associative binary operator.
Optionally reduces the elements of this sequence using the specified associative binary operator.
The order in which operations are performed on elements is unspecified and may be nondeterministic.
Note this method has a different signature than the reduceLeftOption
and reduceRightOption methods of the trait Traversable.
The result of reducing may only be a supertype of this parallel collection's
type parameter T.
A type parameter for the binary operator, a supertype of T.
A binary operator that must be associative.
An option value containing result of applying reduce operator op between all
the elements if the collection is nonempty, and None otherwise.
Applies a binary operator to all elements of this shrinkable collection, going right to left.
Applies a binary operator to all elements of this shrinkable collection, going right to left.
Note: will not terminate for infinite-sized collections.
Note: might return different results for different runs, unless the underlying collection type is ordered. or the operator is associative and commutative.
the binary operator.
the result of inserting op between consecutive elements of this shrinkable collection,
going right to left:
op(x,,1,,, op(x,,2,,, ..., op(x,,n-1,,, x,,n,,)...))
where x1, ..., xn are the elements of this shrinkable collection.
if this shrinkable collection is empty.
Optionally applies a binary operator to all elements of this shrinkable collection, going right to left.
Optionally applies a binary operator to all elements of this shrinkable collection, going right to left.
Note: will not terminate for infinite-sized collections.
Note: might return different results for different runs, unless the underlying collection type is ordered. or the operator is associative and commutative.
the binary operator.
an option value containing the result of reduceRight(op) is this shrinkable collection is nonempty,
None otherwise.
Optionally reuses an existing combiner for better performance.
Optionally reuses an existing combiner for better performance. By default it doesn't - subclasses may override this behaviour.
The provided combiner oldc that can potentially be reused will be either some combiner from the previous computational task, or None if there
was no previous phase (in which case this method must return newc).
The combiner that is the result of the previous task, or None if there was no previous task.
The new, empty combiner that can be used.
Either newc or oldc.
[use case]
the collection to compare with.
true, if both collections contain the same elements in the same order, false otherwise.
[use case]
neutral element for the operator op
the associative operator for the scan
a new shrinkable collection containing the prefix scan of the elements in this shrinkable collection
Produces a collection containing cummulative results of applying the operator going left to right.
Produces a collection containing cummulative results of applying the operator going left to right.
Note: will not terminate for infinite-sized collections.
Note: might return different results for different runs, unless the underlying collection type is ordered.
the actual type of the resulting collection
the initial value
the binary operator applied to the intermediate result and the element
an implicit value of class CanBuildFrom which determines
the result class That from the current representation type Repr and
and the new element type B.
collection with intermediate results
Produces a collection containing cummulative results of applying the operator going right to left.
Produces a collection containing cummulative results of applying the operator going right to left. The head of the collection is the last cummulative result.
Note: will not terminate for infinite-sized collections.
Note: might return different results for different runs, unless the underlying collection type is ordered.
Example:
List(1, 2, 3, 4).scanRight(0)(_ + _) == List(10, 9, 7, 4, 0)
the actual type of the resulting collection
the initial value
the binary operator applied to the intermediate result and the element
an implicit value of class CanBuildFrom which determines
the result class That from the current representation type Repr and
and the new element type B.
collection with intermediate results
Selects an interval of elements.
Selects an interval of elements. The returned collection is made up
of all elements x which satisfy the invariant:
from <= indexOf(x) < until
Note: might return different results for different runs, unless the underlying collection type is ordered.
a shrinkable collection containing the elements greater than or equal to
index from extending up to (but not including) index until
of this shrinkable collection.
Splits this shrinkable collection into a prefix/suffix pair according to a predicate.
Splits this shrinkable collection into a prefix/suffix pair according to a predicate.
This method will use indexFlag signalling capabilities. This means
that splitters may set and read the indexFlag state.
The index flag is initially set to maximum integer value.
the predicate used to test the elements
a pair consisting of the longest prefix of the collection for which all
the elements satisfy pred, and the rest of the collection
Splits this shrinkable collection into two at a given position.
Splits this shrinkable collection into two at a given position.
Note: c splitAt n is equivalent to (but possibly more efficient than)
(c take n, c drop n).
Note: might return different results for different runs, unless the underlying collection type is ordered.
the position at which to split.
a pair of shrinkable collections consisting of the first n
elements of this shrinkable collection, and the other elements.
Tests whether this set is a subset of another set.
Tests whether this set is a subset of another set.
the set to test.
true if this set is a subset of that, i.e. if
every element of this set is also an element of that.
[use case]
the sum of all elements in this shrinkable collection of numbers of type Int.
Instead of Int, any other type T with an implicit Numeric[T] implementation
can be used as element type of the shrinkable collection and as result type of sum.
Examples of such types are: Long, Float, Double, BigInt.
Selects all elements except the first.
Selects all elements except the first.
Note: might return different results for different runs, unless the underlying collection type is ordered.
a shrinkable collection consisting of all elements of this shrinkable collection except the first one.
if the shrinkable collection is empty.
Selects first n elements.
Selects first n elements.
Note: might return different results for different runs, unless the underlying collection type is ordered.
Tt number of elements to take from this shrinkable collection.
a shrinkable collection consisting only of the first n elements of this shrinkable collection,
or else the whole shrinkable collection, if it has less than n elements.
Takes the longest prefix of elements that satisfy the predicate.
Takes the longest prefix of elements that satisfy the predicate.
This method will use indexFlag signalling capabilities. This means
that splitters may set and read the indexFlag state.
The index flag is initially set to maximum integer value.
the predicate used to test the elements
the longest prefix of this shrinkable collection of elements that satisy the predicate pred
[use case]
an array containing all elements of this shrinkable collection.
A ClassManifest must be available for the element type of this shrinkable collection.
Converts this shrinkable collection to a mutable buffer.
Converts this shrinkable collection to a mutable buffer.
Note: will not terminate for infinite-sized collections.
a buffer containing all elements of this shrinkable collection.
Converts this shrinkable collection to an indexed sequence.
Converts this shrinkable collection to an indexed sequence.
Note: will not terminate for infinite-sized collections.
an indexed sequence containing all elements of this shrinkable collection.
Converts this shrinkable collection to an iterable collection.
Converts this shrinkable collection to an iterable collection. Note that
the choice of target Iterable is lazy in this default implementation
as this TraversableOnce may be lazy and unevaluated (i.e. it may
be an iterator which is only traversable once).
Note: will not terminate for infinite-sized collections.
an Iterable containing all elements of this shrinkable collection.
Returns an Iterator over the elements in this shrinkable collection.
Returns an Iterator over the elements in this shrinkable collection. Will return the same Iterator if this instance is already an Iterator.
Note: will not terminate for infinite-sized collections.
an Iterator containing all elements of this shrinkable collection.
Converts this shrinkable collection to a list.
Converts this shrinkable collection to a list.
Note: will not terminate for infinite-sized collections.
a list containing all elements of this shrinkable collection.
[use case]
a map of type immutable.Map[T, U]
containing all key/value pairs of type (T, U) of this shrinkable collection.
Converts this shrinkable collection to a sequence.
Converts this shrinkable collection to a sequence. As with toIterable, it's lazy
in this default implementation, as this TraversableOnce may be
lazy and unevaluated.
Note: will not terminate for infinite-sized collections.
a sequence containing all elements of this shrinkable collection.
Converts this shrinkable collection to a set.
Converts this shrinkable collection to a set.
Note: will not terminate for infinite-sized collections.
a set containing all elements of this shrinkable collection.
Converts this shrinkable collection to a stream.
Converts this shrinkable collection to a stream.
Note: will not terminate for infinite-sized collections.
a stream containing all elements of this shrinkable collection.
Creates a String representation of this object.
Creates a String representation of this object. The default representation is platform dependent. On the java platform it is the concatenation of the class name, "@", and the object's hashcode in hexadecimal.
a String representation of the object.
Converts this shrinkable collection to an unspecified Traversable.
Converts this shrinkable collection to an unspecified Traversable. Will return the same collection if this instance is already Traversable.
Note: will not terminate for infinite-sized collections.
a Traversable containing all elements of this shrinkable collection.
Computes the union between of set and another set.
Computes the union between of set and another set.
the set to form the union with.
a new set consisting of all elements that are in this
set or in the given set that.
[use case]
the type of the second half of the returned pairs
The iterable providing the second half of each result pair
a new shrinkable collection containing pairs consisting of
corresponding elements of this shrinkable collection and that. The length
of the returned collection is the minimum of the lengths of this shrinkable collection and that.
[use case]
the type of the second half of the returned pairs
The iterable providing the second half of each result pair
the element to be used to fill up the result if this shrinkable collection is shorter than that.
the element to be used to fill up the result if that is shorter than this shrinkable collection.
a new shrinkable collection containing pairs consisting of
corresponding elements of this shrinkable collection and that. The length
of the returned collection is the maximum of the lengths of this shrinkable collection and that.
If this shrinkable collection is shorter than that, thisElem values are used to pad the result.
If that is shorter than this shrinkable collection, thatElem values are used to pad the result.
[use case]
A new shrinkable collection containing pairs consisting of all elements of this
shrinkable collection paired with their index. Indices start at 0.
@example
List("a", "b", "c").zipWithIndex = List(("a", 0), ("b", 1), ("c", 2))
Computes the union between this set and another set.
Computes the union between this set and another set.
Note: Same as union.
the set to form the union with.
a new set consisting of all elements that are in this
set or in the given set that.
A template trait for mutable parallel sets. This trait is mixed in with concrete parallel sets to override the representation type.
The higher-order functions passed to certain operations may contain side-effects. Since implementations of bulk operations may not be sequential, this means that side-effects may not be predictable and may produce data-races, deadlocks or invalidation of state if care is not taken. It is up to the programmer to either avoid using side-effects or to use some form of synchronization when accessing mutable data.
the element type of the set
2.9