reinterpret_cast in C++ | Type Casting operators
reinterpret_cast is a type of casting operator used in C++.
- It is used to convert a pointer of some data type into a pointer of another data type, even if the the data types before and after conversion are different.
- It does not check if the pointer type and data pointed by the pointer is same or not.
data_type *var_name = reinterpret_cast <data_type *>(pointer_variable);
- It doesn’t have any return type. It simply converts the pointer type.
- It takes only one parameter i.e., the source pointer variable (p in above example).
65 A 0x1609c20 A
Purpose for using reinterpret_cast
- reinterpret_cast is a very special and dangerous type of casting operator. And is suggested to use it using proper data type i.e., (pointer data type should be same as original data type).
- It can typecast any pointer to any other data type.
- It is used when we want to work with bits.
- If we use this type of cast then it becomes a non-portable product. So, it is suggested not to use this concept unless required.
- It is only used to typecast any pointer to its original type.
- Boolean value will be converted into integer value i.e., 0 for false and 1 for true.
12 5 10 a 1 1
In class A
Related link :
https://stackoverflow.com/questions/573294/when-to-use-reinterpret-cast” rel=”noopener” target=”_blank