Thread: Need help with rand(), random array

Originally Posted by avenged

I'm trying to write a function with any random integer that the user will enter with scanf (randomNumber)

Code:

int randomArray(int arr1, int randomNumber) 
{
    int i, x = rand() % randomNumber;
    for (i = 0; i < 10; i++){
        arr1[&i] = x;
    printf("Enter arr[%d]: %d", i, x);
}
    return randomArray;

This code is strange and it's hard to see what you are trying to
achieve. The unequivocal mistake is that "&" is the address
of operator in C. So you are saying "take the address of i and
use it as an index into arr1". arr1 is not even an array, it is
an integer. So the compiler throws a fit at this point.

You also seem to be trying to return a function. This is the idiom
in some programming languages, but not C. C functions are
compiled into machine code. You can take their addresses, but
you cannot manipulate the function itself at runtime.

I'm trying to create a new array, with random numbers, the numbers are limited from 0 to a random number that the user decides while running it. i'm pretty sure that the problem is with "rand() % randomNumber".
I first wrote it as " arr1[i] = x;", I only added the "&" because visual studio gave me an error there and wouldn't let me run the program without it.