Text processing library

The text processing library includes components for dealing with text.

Localization library

The headers <locale> and <clocale>

Regular expressions library (since C++11)

The header <regex> provides a class that represents regular expressions

Formatting library (since C++20)

The header <format> provides facilities for type-safe and extensible string formatting that is an alternative to the printf

Null-terminated sequence utilities

Null-terminated character sequences (NTCTS) are sequences of characters that are terminated by a null character (the value after value-initialization

The strings library provides functions to create, inspect, and modify such sequences:

• null-terminated byte strings (NTBS) helper functions (including support of wide character types),
• null-terminated multibyte strings (NTMBS) helper functions.

Primitive numeric conversions (since C++17)

In addition to sophisticated locale-dependent parsers and formatters provided by the C++ I/O library, the C I/O library, C++ string converters, and C string converters, the header <charconv>

Defined in header <charconv>
to_chars (C++17)	converts an integer or floating-point value to a character sequence (function)
to_chars_result (C++17)	the return type of std::to_chars (class)
from_chars (C++17)	converts a character sequence to an integer or floating-point value (function)
from_chars_result (C++17)	the return type of std::from_chars (class)
chars_format (C++17)	specifies formatting for std::to_chars and std::from_chars (enum)

Text encoding identifications (since C++26)

Defined in header <text_encoding>
text_encoding (C++26)	describes an interface for accessing the IANA Character Sets registry (class)

See also

C++ documentation for Strings library