return array from function c++
#include <iostream>
using namespace std;
int* fun()
{
int* arr = new int[100];
/* Some operations on arr[] */
arr[0] = 10;
arr[1] = 20;
return arr;
}
int main()
{
int* ptr = fun();
cout << ptr[0] << " " << ptr[1];
return 0;
}cpp return array
int * fillarr(int arr[], int length){
for (int i = 0; i < length; ++i){
// arr[i] = ? // do what you want to do here
}
return arr;
}
// then where you want to use it.
int main(){
int arr[5];
int *arr2;
arr2 = fillarr(arr, 5);
}
// at this point, arr & arr2 are basically the same, just slightly
// different types. You can cast arr to a (char*) and it'll be the same.c++ function return array
#include <iostream>
#include <ctime>
using namespace std;
// function to generate and retrun random numbers.
int * getRandom( ) {
static int r[10];
// set the seed
srand( (unsigned)time( NULL ) );
for (int i = 0; i < 10; ++i) {
r[i] = rand();
cout << r[i] << endl;
}
return r;
}
// main function to call above defined function.
int main () {
// a pointer to an int.
int *p;
p = getRandom();
for ( int i = 0; i < 10; i++ ) {
cout << "*(p + " << i << ") : ";
cout << *(p + i) << endl;
}
return 0;
}Copyright © 2021 Codeinu
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