The Eref data index in C++ is a type of reference-counted smart pointer that allows you to access and manipulate data stored in a container or database. It consists of two main components: the index itself, which stores a reference to the data object, and the data object, which holds the actual data.
Here are two examples of using Eref dataIndex:
Example 1:
```c++ #include #include #include
using namespace std;
int main() { vector myVec = {1, 2, 3}; Eref> myIndex(myVec); cout << "The first element is: " << myIndex->at(0) << endl; return 0; }
In this example, we create a vector of integers and pass it to an Eref dataIndex object, which allows us to access the first element using the "arrow" notation.
Example 2:
c++
#include
#include
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