C++ TRICK FOR COMPETITIVE PART-10
MOVE
When you work with STL containers like vectors, you can use the move function to just move the container, not to copy it all.
EXAMPLE
vector<int> v = {1, 2, 3, 4};
vector<int> w = move(v);
cout << "v: ";
for (auto i: v)
cout << i << ' ';
cout << "\nw: ";
for (auto i: w)
cout << i << ' ';
Output:
v:
w: 1 2 3 4
As you can see v moved to w and not copied.
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Comments
Khushi
15-Dec-2020 06:08:54 PM