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The std::string class is the standard representation for a text string since C++98. The class provides some typical string operations like comparison, concatenation, find and replace, and a function for obtaining substrings. An std::string can be constructed from a C-style string, and a C-style string can also be obtained from one. [7]
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.
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++11 is a version of the ISO / IEC 14882 standard for the C++ programming language. C++11 replaced the prior version of the C++ standard, called C++03, [1] and was later replaced by C++14. The name follows the tradition of naming language versions by the publication year of the specification, though it was formerly named C++0x because it was ...
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.
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 ...
C++ language revisions. C++14 is a version of the ISO / IEC 14882 standard for the C++ programming language. It is intended to be a small extension over C++11, featuring mainly bug fixes and small improvements, and was replaced by C++17. Its approval was announced on August 18, 2014. [1] C++14 was published as ISO/IEC 14882:2014 in December 2014.
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.