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Provides a modern way of formatting strings including std::format. <string> Provides the C++ standard string classes and templates. <string_view> New in C++17. Provides class template std::basic_string_view, an immutable non-owning view to any string. <regex> New in C++11. Provides utilities for pattern matching strings using regular expressions.
C++ has two styles of string, one inherited from C (delimited by "), and the safer std::string in the C++ Standard Library. The std::string class is frequently used in the same way a string literal would be used in other languages, and is often preferred to C-style strings for its greater flexibility and safety.
Apache C++ Standard Library (The starting point for this library was the 2005 version of the Rogue Wave standard library [14]) Libstdc++ uses code derived from SGI STL for the algorithms and containers defined in C++03. Dinkum STL library by P.J. Plauger; The Microsoft STL which ships with Visual C++ is a licensed derivative of Dinkum's STL.
C++26. v. t. e. C++11 is a version of a joint technical standard, ISO/IEC 14882, by the International Organization for Standardization (ISO) and International Electrotechnical Commission (IEC), for the C++ programming language. C++11 replaced the prior version of the C++ standard, named C++03, [ 1 ] and was later replaced by C++14.
std::string_view, a read-only non-owning reference to a character sequence or string-slice [31] std::optional, for representing optional objects, a data type that may not always be returned by a given algorithm with support for non-return; std::any, for holding single values of any type; std::uncaught_exceptions, as a replacement of std ...
A class in C++ is a user-defined type or data structure declared with any of the keywords class, struct or union (the first two are collectively referred to as non-union classes) that has data and functions (also called member variables and member functions) as its members whose access is governed by the three access specifiers private, protected or public.
The variadic template feature of C++ was designed by Douglas Gregor and Jaakko Järvi [1][2] and was later standardized in C++11. Prior to C++11, templates (classes and functions) could only take a fixed number of arguments, which had to be specified when a template was first declared. C++11 allows template definitions to take an arbitrary ...
On the other hand, C99 introduced a number of new features that C++ did not support that were incompatible or redundant in C++, such as variable-length arrays, native complex-number types (however, the std:: complex class in the C++ standard library provides similar functionality, although not code-compatible), designated initializers, compound ...