Question

Which function is used to get the total capacity of a vector?

(a) v.size()

(b) v.capacity()

(c) v.max_size()

(d) v.no_of_elements()

This question was addressed to me during a job interview.

This intriguing question comes from seq_con Vector Class in section Class Hierarchies, Library & Containers of C++

Answer 1

Correct choice is (b) v.capacity()

The best explanation: capacity() function is used to get the total number of elements that can be stored at present in the vector.