T& operator[](size_t i) const; | (since C++11) |
operator[] provides access to elements of an array managed by a unique_ptr.
The parameter i is required to be a valid array index.
Parameters
| i | - | the index of the element to be returned |
Return value
Returns the element at index i, i.e. get()[i].
Example
#include <iostream>
#include <memory>
int main()
{
const int size = 10;
std::unique_ptr<int[]> fact(new int[size]);
for (int i = 0; i < size; ++i) {
fact[i] = (i == 0) ? 1 : i * fact[i-1];
}
for (int i = 0; i < size; ++i) {
std::cout << i << ": " << fact[i] << '\n';
}
}Output:
0: 1 1: 1 2: 2 3: 6 4: 24 5: 120 6: 720 7: 5040 8: 40320 9: 362880
See also
| returns a pointer to the managed object (public member function) |
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