isEmpty

A Boolean value indicating whether the buffer is empty.

var isEmpty: Bool { get }

Mangled symbol

sSRsRi_zrlE7isEmptySbvpWhat are these?

FNV24: [3QG0I]

Other members in extension

Types

struct Iterator
An iterator for the elements in the buffer referenced by an UnsafeBufferPointer or UnsafeMutableBufferPointer instance.

Typealiases

Type members

init(UnsafeMutableBufferPointer<Element>)
Creates an immutable typed buffer pointer referencing the same memory as the given mutable buffer pointer.
init(rebasing: Slice<UnsafeBufferPointer<Element>>)
Creates a buffer over the same memory as the given buffer slice.
init(rebasing: Slice<UnsafeMutableBufferPointer<Element>>)
Creates a buffer over the same memory as the given buffer slice.
init(start: UnsafePointer<Element>?, count: Int)
Creates a new buffer pointer over the specified number of contiguous instances beginning at the given pointer.

Instance members

var baseAddress: UnsafePointer<Element>?
A pointer to the first element of the buffer.
let count: Int
The number of elements in the buffer.
var debugDescription: String
A textual representation of the buffer, suitable for debugging.
var endIndex: Int
The “past the end” position—that is, the position one greater than the last valid subscript argument.
var indices: UnsafeBufferPointer<Element>.Indices
var startIndex: Int
The index of the first element in a nonempty buffer.
subscript(Int) -> Element
Accesses the element at the specified position.
subscript(Range<Int>) -> Slice<UnsafeBufferPointer<Element>>
Accesses a contiguous subrange of the buffer’s elements.
subscript(Int) -> Element
Accesses the element at the specified position.
func deallocate()
Deallocates the memory block previously allocated at this buffer pointer’s base address.
func distance(from: Int, to: Int) -> Int
func extracting(Range<Int>) -> UnsafeBufferPointer<Element>
Constructs a standalone buffer pointer over the items within the supplied range of positions in the memory region addressed by this buffer pointer.
func extracting(some RangeExpression<Int>) -> UnsafeBufferPointer<Element>
Constructs a standalone buffer pointer over the items within the supplied range of positions in the memory region addressed by this buffer pointer.
func extracting((UnboundedRange_) -> ()) -> UnsafeBufferPointer<Element>
Extracts and returns a copy of the entire buffer.
func formIndex(after: inout Int)
func formIndex(before: inout Int)
func index(Int, offsetBy: Int) -> Int
func index(Int, offsetBy: Int, limitedBy: Int) -> Int?
func index(after: Int) -> Int
func index(before: Int) -> Int
func makeIterator() -> UnsafeBufferPointer<Element>.Iterator
Returns an iterator over the elements of this buffer.
func withContiguousStorageIfAvailable<R>((UnsafeBufferPointer<Element>) throws -> R) rethrows -> R?
func withMemoryRebound<T, E, Result>(to: T.Type, (UnsafeBufferPointer<T>)throws
Executes the given closure while temporarily binding the memory referenced by this buffer to the given type.