2956261
Descrição
Quiz por roxar.ndc2015, atualizado more than 1 year ago
|
Criado por roxar.ndc2015
mais de 9 anos atrás
|
|
Questão 1
Questão
What is true about a Smart Pointers in C++?
Responda
-
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
Questão 2
Questão
What is the order that objects in an array are destroyed in C++? MyClass objs[10];
Responda
-
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
Questão 3
Questão
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?
Responda
-
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
Quer criar seus próprios Quizzes gratuitos com a GoConqr? Saiba mais.