Question

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What are the differences between struct and class in C++
C++ – struct vs. class

How are structures different from objects and classes in C++? Is there any performance benefit to using objects or structures?

Answer 1

Structures and classes are identical; the language standard uses the term “class” to refer to both. The only difference between defining a class using the struct or the class keyword is the default accessibility of members and base classes; there is no difference in their runtime behaviour or performance.

An “object” is a run-time instance of a type. In C++, the term is used for instances of any type, including classes and fundamental types.