ProtocolSwift

StringProtocol

A type that can represent a string as a collection of characters.

protocol StringProtocol : BidirectionalCollection, Comparable, ExpressibleByStringInterpolation, Hashable, LosslessStringConvertible, TextOutputStream, TextOutputStreamable where Self.Element == Character, Self.Index == String.Index, Self.StringInterpolation == DefaultStringInterpolation, Self.SubSequence : StringProtocol

Overview

Do not declare new conformances to StringProtocol. Only the String and Substring types in the standard library are valid conforming types.

Requirements

Associated Types

associatedtype SubSequence = Substring
- Refines requirement in BidirectionalCollection
associatedtype UTF16View : BidirectionalCollection
associatedtype UTF8View : Collection
associatedtype UnicodeScalarView : BidirectionalCollection

Initializers

init(cString: UnsafePointer<CChar>)
Creates a string from the null-terminated, UTF-8 encoded sequence of bytes at the given pointer.
init<C, Encoding>(decoding: C, as: Encoding.Type)
Creates a string from the given Unicode code units in the specified encoding.
init<Encoding>(decodingCString: UnsafePointer<Encoding.CodeUnit>, as: Encoding.Type)
Creates a string from the null-terminated sequence of bytes at the given pointer.

Instance Properties

Instance Methods

func hasPrefix(String) -> Bool
func hasSuffix(String) -> Bool
func lowercased() -> String
func uppercased() -> String
func withCString<Result>((UnsafePointer<CChar>) throws -> Result) rethrows -> Result
Calls the given closure with a pointer to the contents of the string, represented as a null-terminated sequence of UTF-8 code units.
func withCString<Result, Encoding>(encodedAs: Encoding.Type, (UnsafePointer<Encoding.CodeUnit>) throws -> Result) rethrows -> Result
Calls the given closure with a pointer to the contents of the string, represented as a null-terminated sequence of code units.

Members

Operators

static func != <RHS>(Self, RHS) -> Bool
static func == <RHS>(Self, RHS) -> Bool
Returns a Boolean value indicating whether two values are equal.

Implies

Conforming Types

String
Substring