Text processing library

 

C++

Compiler support

Freestanding and hosted

Language

Standard library

Standard library headers

Named requirements

Feature test macros (C++20)

Language support library

Concepts library (C++20)

Diagnostics library

Memory management library

Metaprogramming library (C++11)

General utilities library

Containers library

Iterators library

Ranges library (C++20)

Algorithms library

Strings library

Text processing library

Numerics library

Date and time library

Input/output library

Filesystem library (C++17)

Concurrency support library (C++11)

Execution support library (C++26)

Technical specifications

Symbols index

External libraries

 

Text processing library

Localization library

Regular expressions library (C++11)

Formatting library (C++20)

Null-terminated sequence utilities

Byte strings

Multibyte strings

Wide strings

Primitive numeric conversions

to_chars (C++17) to_chars_result (C++17) from_chars (C++17) from_chars_result (C++17) chars_format (C++17)

Text encoding identifications

text_encoding (C++26)

 

The text processing library includes components for dealing with text.

Localization library

The headers <locale> and <clocale> provide internationalization support for character classification and string collation, numeric, monetary, and date/time formatting and parsing, and message retrieval.

Regular expressions library (since C++11)

The header <regex> provides a class that represents regular expressions, which are a kind of mini-language used to perform pattern matching within strings.

Formatting library (since C++20)

The header <format> provides facilities for type-safe and extensible string formatting that is an alternative to the printf family of functions, and intended to complement the existing C++ I/O streams library.

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> provides light-weight, locale-independent, non-allocating, non-throwing parsers and formatters for arithmetic types.

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