Complete Modern C++ - Fold Expressions - Unary Folds

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Information Technology (IT), Architecture
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University
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Hard
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary advantage of using fold expressions in C++17?
They enable the use of more data types.
They allow for more complex operations.
They simplify the application of binary operations on parameter packs.
They increase the speed of compilation.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a fold expression, what is the role of the identity element?
It determines the type of operation to be performed.
It acts as the initial value in a binary fold.
It specifies the number of parameters in the pack.
It defines the order of operations.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does a binary right fold differ from a unary right fold?
It uses a different set of operators.
It includes an initial value or identity element.
It can only be used with subtraction.
It requires more parameters.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is true about unary folds?
They require at least one argument to compile.
They can only be used with addition operations.
They automatically handle zero arguments.
They are faster than binary folds.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens if no arguments are passed to a unary fold?
The code will compile with default values.
The code will not compile due to lack of operands.
The fold will use the identity element as the result.
The fold will return zero.
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