Returns the range of the composed character sequence at a specified index.
- iOS 2.0+
- macOS 10.2+
- Mac Catalyst 13.0+Beta
- tvOS 9.0+
- watchOS 2.0+
The index of the character contained in the composed character sequence. If the index is outside the range of the string (
N-1 inclusive, where
N is the length of the string), the behavior is undefined.
The range of the composed character sequence.
A composed character sequence is a series of one or more characters where each is a combining character, zero-width joiner or non-joiner, voiced mark, or enclosing mark, optionally including a base character.
Fetches a range of the characters from a string into a byte buffer after converting the characters to a specified encoding.
Copies the character contents of a string to a local C string buffer after converting the characters to a given encoding.
Quickly obtains a pointer to a C-string buffer containing the characters of a string in a given encoding.
Returns the number (in terms of UTF-16 code pairs) of Unicode characters in a string.
Copies the character contents of a CFString object to a local Pascal string buffer after converting the characters to a requested encoding.
This documentation contains preliminary information about an API or technology in development. This information is subject to change, and software implemented according to this documentation should be tested with final operating system software.Learn more about using Apple's beta software