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Which of the following operator is used to capture all the external variable by reference?

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in C++ by (98.8k points)
Which of the following operator is used to capture all the external variable by reference?

(a) &

(b) =

(c) *

(d) &&

The question was asked during an interview.

This intriguing question originated from Lambda Expressions topic in portion C++ Advanced of C++

1 Answer

+1 vote
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Best answer
The correct option is (a) &

The best explanation: The lambda expression uses & operator to capture the external variable by reference.

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