Key Features of C++14

Key Features of C++14

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C++14 is a version of the C++ programming language standard that was published in 2014. It introduced several new features and improvements to the C++ language. Here are some of the most notable features of C++14 along with examples to illustrate their use:

 

• Return Type Deduction: C++14 allows for automatic return type deduction for functions using the auto keyword. This feature can simplify the code and improve readability.

auto add(int x, int y) {
   return x + y;
}

• Variable Templates: C++14 introduces a new type of template called a "variable template." Variable templates allow you to define variables that can be parameterized by types or values.

template <typename T>
constexpr T pi = T(3.1415926535897932385);

• Binary Literals: C++14 introduces binary literals, which allow you to write binary values directly in your code.

int x = 0b1010; // x is equal to 10

• Generalized Lambdas: C++14 extends the syntax for lambda expressions to make it possible to capture variables in more flexible ways. This makes it easier to write concise and readable code using lambdas.

int x = 10;
auto add = [x](int y) { return x + y; };

• Improved Type Inference: C++14 introduces a number of improvements to type inference, making it easier to write code that is both type-safe and readable

auto x = 10; // x has type int
auto str = "hello"; // str has type const char*

 

These are just a few examples of the features introduced in C++14. Other features include improved support for move semantics, more flexible use of constexpr, and more. These features help make C++14 a more expressive, efficient, and easier-to-use programming language.

 

Summary

1. Return Type Deduction: The auto keyword can be used to automatically deduce the return type of a function.
2. Variable Templates: A new type of template called a "variable template" allows you to define variables that can be parameterized by types or values.
3. Binary Literals: Binary literals allow you to write binary values directly in your code.
4. Generalized Lambdas: The syntax for lambda expressions has been extended to make it easier to capture variables.
5. Improved Type Inference: C++14 introduces a number of improvements to type inference, making it easier to write type-safe and readable code.