PCLP4

Struct vs Class quiz

Question

In the previous example, why the class executable is significantly faster?

	Classes in D are implemented more efficiently	When a variable is pass by value, we create a copy of the variable and it’s content everytime we use it in a function. So, for structs we are creating a million copies, while for classes only one, hence the implementation with classes is faster.
	Structs are stored on the stack data segment, which is slower	When a variable is pass by value, we create a copy of the variable and it’s content everytime we use it in a function. So, for structs we are creating a million copies, while for classes only one, hence the implementation with classes is faster.
	Structs are value types, every time we call `get_a0` a new struct with 1000 fields is created	Correct
	Classes have faster acces to their data	When a variable is pass by value, we create a copy of the variable and it’s content everytime we use it in a function. So, for structs we are creating a million copies, while for classes only one, hence the implementation with classes is faster.