struct Pf::Core::Sparse32(T)

Defined in:

CAPS = StaticArray(UInt8, 33).new(0_u8): Maps population count (array size) to capacity directly.
GROWTH = StaticArray(UInt8, 33).new(0_u8): Maps item count to expected capacity. '0' means 'keep' (do not grow).

#at?(index : Int) : T | Nil
Returns the element at index, or nil.
#bitmap : UInt32
Returns the bitmap.
#each(from lo = 0_u8, & : T, UInt8 -> )
Yields each element from this array followed by its index.
#empty? : Bool
Returns true if this array contains no elements.
#size
Returns the amount of elements in this array.
#to_unsafe : Pointer(T)
Returns a pointer to the internal buffer where self's elements are stored.
#with(index : Int, el : T) : Sparse32(T)
Returns a copy of this array where el is present at index.
#with!(index : Int, el : T) : self
Modifies this array at index by updating or inserting el there.
#without(index : Int) : Sparse32(T)
Returns a copy of this array where the element at index is absent.
#without!(index : Int) : self
Modifies this array by removing the element at index if it was present.

def self.new(mem : Pointer(T), bitmap : UInt32) #

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def self.new #

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def at?(index : Int) : T | Nil #

Returns the element at index, or nil.

index must be in 0...32, otherwise this method raises IndexError.

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def bitmap : UInt32 #

Returns the bitmap. The bitmap specifies which slots out of the 32 available ones are occupied.

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def each(from lo = 0_u8, & : T, UInt8 -> ) #

Yields each element from this array followed by its index.

lo can be used to specify the lower bound (the index where to start; inclusive).

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def empty? : Bool #

Returns true if this array contains no elements.

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def size #

Returns the amount of elements in this array.

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def to_unsafe : Pointer(T) #

Returns a pointer to the internal buffer where self's elements are stored.

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def with(index : Int, el : T) : Sparse32(T) #

Returns a copy of this array where el is present at index.

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def with!(index : Int, el : T) : self #

Modifies this array at index by updating or inserting el there.

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def without(index : Int) : Sparse32(T) #

Returns a copy of this array where the element at index is absent.

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def without!(index : Int) : self #

Modifies this array by removing the element at index if it was present.

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