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Casting in C++

C and C++ Miscellaneous
The new C++ standard is full of powerful additions to the language: templates, run-time type identification (RTTI), namespaces, and exceptions to name a few. This tutorial discusses one of the minor extensions: the new C++ casting operators.
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We have been introduced to declaring variables using specific data types. After declaring a value and initializing it, you may want the value to change type without redefining it. This is required in some cases where you already have a value, probably produced by one variable, while another variable declared with a different data type. This means that you would need to convert a value from one type into another type. For example, you may have declared a variable using a double data type but you need the value of that variable to be used as an int. Transferring a value from one type to another is referred to as casting.

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