2956261
Description
Quiz by roxar.ndc2015, updated more than 1 year ago
|
Created by roxar.ndc2015
over 9 years ago
|
|
Question 1
Question
What is true about a Smart Pointers in C++?
Answer
-
There's an implementation available as part of the C++ standard library
-
The objects they point to are automatically deleted by the garbage collector
-
They are used to help ensure that programs are free of memory and resource leaks and are exception-safe
-
It was invented by John Smart
Question 2
Question
What is the order that objects in an array are destroyed in C++? MyClass objs[10];
Answer
-
The order is undefined
-
Objects will be destroyed in the same order as they were created
-
The order of destruction is the reverse of the order of construction
Question 3
Question
You were given a chunk of memory and constructed a new object in that chunk using placement new. What do you do to destroy that object again?
Answer
-
The destructor will be called automatically when the chunk of memory is freed
-
Placement new doesn’t require destruction of constructed objects
-
I will manually invoke the destructor of the object
-
A call to placement delete is necessary to destroy the object
Want to create your own Quizzes for free with GoConqr? Learn more.