C + + Returns an array from a function

C + + does not allow the return of a complete array as a function parameter. However, you can return a pointer to an array by specifying an array name without an index.

If you want to return a one-dimensional array from a function, you must declare a function that returns a pointer, as follows:

int * myFunction () {...}

In addition, C + + does not support returning the address of a local variable outside of a function unless the local variable is defined as a static variable.

Now, let's look at the following function, which generates 10 random numbers and uses an array to return them, as follows:

#include <iostream>#include<cstdlib>#include<ctime>using namespacestd;//function to generate and return a random numberint*Getrandom () {Static intr[Ten]; //Set seedSrand ((unsigned) time (NULL));  for(inti =0; I <Ten; ++i) {R[i]=rand (); cout<< R[i] <<Endl; }   returnR;} //to invoke the main function that defines the function aboveintMain () {//a pointer to an integer   int*p; P=Getrandom ();  for(inti =0; I <Ten; i++) {cout<<"* (P +"<< I <<") : "; cout<< * (p + i) <<Endl; }    return 0;}

C + + returns an array from a function