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Section 10.3 Copying vectors
There is one more constructor for
vectors, which is called a copy constructor because it takes one
vector as an argument and creates a new vector that is the same size, with the same elements.
vector<int> countCopy(count);
Although this syntax is legal, it is almost never used for
vectors because there is a better alternative:
vector<int> countCopy = count;
The
= operator works on
vectors in pretty much the way you would expect.
Listing 10.3.1. Take a look at this active code, which uses the copy constructor.
Checkpoint 10.3.1 .
Multiple Response How would you make a copy of
vector<double> decimals called
nums ?
vector<double> nums = decimals;
This is one way to make a copy.
vector<double> decimals = nums;
This makes a copy of nums called decimals.
vector<double> nums (decimals);
This is one way to make a copy.
vector<double> decimals (nums);
This makes a copy of nums called decimals.
Checkpoint 10.3.2 .
You have attempted
of
activities on this page.
