C++20
C++20 was released in 2020 with new features that enhance the performance of the code in terms of compilation time, reusability, and concurrency.
Key features of the C++20 standard are:
- Concepts Library: It is defined in the <concepts> header file and used to define the requirements on template arguments, allowing more shorter and understandable code.
- Ranges: It is a new library that helps programmers to work with sequences, providing a more expressive and efficient alternative to iterators.
- Coroutines: They can help in achieving concurrency while implementing asynchronous code.
- Three-Way Comparisons: It is also called spaceship operator. It is used to compare two objects whether they are equal, greater than, or less than each other. The three-way comparison operator expression is of the form lhs <=> rhs.
- Modules: A new way to organize and manage code, improving compilation times and enhancing code isolation and reusability.
- Calendar and time zone library: It is defined in <chrono> header file that provides a detailed way to represent date and time and work efficiently with date and time and different time zones.
- std::to_array: It is used to convert a C-style array or list to std::array.
C++ Standards and Implementations
C++ programming language is widely used and known for its power, versatility, and performance. C++ is an extension of the C programming language created by Danish computer scientist Bjarne Stroustrup. With time several C++ standards have been introduced with new features and enhancements. In this article, we will explore the major C++ standards, along with their key features to understand the evolution of C++ and the benefits provided to programmers or developers.
Nowadays C++ is popular for competitive programming because of its performance but it is also used for building robust applications which we are using in our daily life. A few of them are given below:
- Operating Systems
- Games
- Embedded Systems
- Compilers
- Web Browsers
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