Answers for "use array in function c++"

passing array to function c++ pointer

void generateArray(int *a, int si)
{
    for (int j = 0; j < si; j++)
        a[j] = rand() % 9;
}

int main()
{
    const int size=5;
    int a[size];

    generateArray(a, size);

    return 0;
}

c++ array of functions

#include <iostream>
using namespace std;

typedef int (*IntFunctionWithOneParameter) (int a);

int function(int a){ return a; }
int functionTimesTwo(int a){ return a*2; }
int functionDivideByTwo(int a){ return a/2; }

void main()
{
    IntFunctionWithOneParameter functions[] = 
    {
        function, 
        functionTimesTwo, 
        functionDivideByTwo
    };

    for(int i = 0; i < 3; ++i)
    {
        cout << functions[i](8) << endl;
    }
}