What is Type Casting in C++, and how do you achieve it?

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What is Type Casting in C++, and how do&nbsp;you achieve it?

Khushi Singh · Answer

Type casting in C++ is the process of converting a variable from one data type to another. This converting, which is imperative when operating between various data representation forms, may also be needed when there is an explicit wish to change the way a certain piece of data is presented. In C++, both implicit and explicit types of castings are incorporated.
Implicit Type Casting (Type Promotion):
This happens automatically when one represents the inclusion of the smaller type into the larger type, such as converting from an integer to a floating-point. Thus, there will not be any loss of data because of conversion, which is given by a compiler in any programming language without any manual instructions.
Explicit Type Casting:
Explicit type casting, known as type conversion, is undertaken by the programmer to convert explicit data types into another. It is worth mentioning here that C++ provides the programmer with four types of explicit typecast methods:
C-Style Casting: The first and traditional type of type casting, where you precede the variable with the desired type in parentheses. It is unsafe, and therefore, the most cautious usage is recommended.static_cast: It's used for well-specified conversions between compatible types, i.e., conversions between int to double, or converting pointers within an inheritance hierarchy.dynamic_cast: It is used for safely converting pointers and references in polymorphic class hierarchies so that type safety is ensured at runtime.const_cast: It's used to add or remove the const qualifier from a variable.reinterpret_cast: This is a very low-level type of casting where a type is changed from one to another, usually with pointers. It is required to take utmost care while using it as it leads to undefined behavior.
Using the proper type casting thus allows safe and efficient data conversion while also keeping code readable and preventing possible runtime errors.and

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What is Type Casting in C++, and how do you achieve it?

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