explain how to put a return reference in a function c++
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Answer:
In C++, you can use references to return a value from a function. A reference is a way to refer to a memory location using another name. Here's an example of how you might use a reference to return a value from a function:
#include <iostream>
int& getValue(int* array, int index) {
return array[index];
}
int main() {
int myArray[10] = {1, 2, 3, 4, 5};
// Get a reference to the value at index 2 in the array
int& value = getValue(myArray, 2);
// Modify the value at the specified index
value = 100;
// Print the modified array
for (int i = 0; i < 10; i++) {
std::cout << myArray[i] << " ";
}
return 0;
In this example, the getValue function takes a pointer to an array of integers and an index, and returns a reference to the value at the specified index in the array. This allows us to modify the value in the array directly, without having to return the value, copy it, and then assign it back to the array.