Type confusion (C++)

C++ provides classes, like structs that tie data to functions. Class instance known as ‘object’.

Stack objects have constructor and destructor automatically called.

Heap objects managed with new/delete which call constructor/destructor.

Typecasts:

• reinterpret_cast: no checks, assumes programmer know what they’re doing
• static_cast: compile-time check, allows any cast that might be valid (including parent-to-child)
• dynamic_cast: run-time check, ensures runtime type is consistent with compile-time type

Type confusion: object may be cast to wrong type, members read and written according to the wrong type