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import Swift

@frozen struct Character

A single extended grapheme cluster that approximates a user-perceived character.

@frozen struct Bool

A value type whose instances are either true or false.

init(_ s: String)

Creates a character from a single-character string.

init(_ content: Unicode.Scalar)

Creates a character containing the given Unicode scalar value.

init(extendedGraphemeClusterLiteral value: Character)

Creates a character with the specified value.

var asciiValue: UInt8? { get }

The ASCII encoding value of this character, if it is an ASCII character.

var customMirror: Mirror { get }

A mirror that reflects the Character instance.

var debugDescription: String { get }

A textual representation of the character, suitable for debugging.

var description: String { get }

var hexDigitValue: Int? { get }

The numeric value this character represents, if it is a hexadecimal digit.

var isASCII: Bool { get }

A Boolean value indicating whether this is an ASCII character.

var isCased: Bool { get }

A Boolean value indicating whether this character changes under any form of case conversion.

var isCurrencySymbol: Bool { get }

A Boolean value indicating whether this character represents a currency symbol.

var isHexDigit: Bool { get }

A Boolean value indicating whether this character represents a hexadecimal digit.

var isLetter: Bool { get }

A Boolean value indicating whether this character is a letter.

var isLowercase: Bool { get }

A Boolean value indicating whether this character is considered lowercase.

var isMathSymbol: Bool { get }

A Boolean value indicating whether this character represents a symbol that naturally appears in mathematical contexts.

var isNewline: Bool { get }

A Boolean value indicating whether this character represents a newline.

var isNumber: Bool { get }

A Boolean value indicating whether this character represents a number.

var isPunctuation: Bool { get }

A Boolean value indicating whether this character represents punctuation.

var isSymbol: Bool { get }

A Boolean value indicating whether this character represents a symbol.

var isUppercase: Bool { get }

A Boolean value indicating whether this character is considered uppercase.

var isWhitespace: Bool { get }

A Boolean value indicating whether this character represents whitespace, including newlines.

var isWholeNumber: Bool { get }

A Boolean value indicating whether this character represents a whole number.

var unicodeScalars: Character.UnicodeScalarView { get }

var utf16: Character.UTF16View { get }

A UTF-16 encoding of self.

var utf8: Character.UTF8View { get }

A UTF-8 encoding of self.

var wholeNumberValue: Int? { get }

The numeric value this character represents, if it represents a whole number.

static func < (lhs: Character, rhs: Character) -> Bool

func hash(into hasher: inout Hasher)

Hashes the essential components of this value by feeding them into the given hasher.

func lowercased() -> String

Returns a lowercased version of this character.

func uppercased() -> String

Returns an uppercased version of this character.

func write<Target>(to target: inout Target) where Target : TextOutputStream

Writes the character into the given output stream.

typealias UTF16View = String.UTF16View

A view of a character’s contents as a collection of UTF-16 code units. See String.UTF16View for more information

typealias UTF8View = String.UTF8View

A view of a character’s contents as a collection of UTF-8 code units. See String.UTF8View for more information

typealias UnicodeScalarView = String.UnicodeScalarView

var customPlaygroundQuickLook: _PlaygroundQuickLook { get }

A custom playground Quick Look for the Character instance.