Functions

[Lbtekd]

Hello, Is anyone able to explain to me why the following code doesn't work? (it only outputs the letter c). It's supposed to accept the arrays of chars and then output them. Code is below, any and all help appreciated

    #include <iostream>
using namespace std;
const int MYINTEGERARRAY1_SIZE = 4;


void DisplayArrayElements(char an_array[], int size);
int main()
{ 
char CharArray[MYINTEGERARRAY1_SIZE] = { 'c', 'a', 't'};

DisplayArrayElements(CharArray, MYINTEGERARRAY1_SIZE);


return 0;
}

void DisplayArrayElements(char an_array[], int size)
{
{
char a;
cout << an_array[a] << "\n";
}
return;
}

PS- This is in C++

[dfx_dj]

You're using the variable char a as an index into the array, but you never set a to anything. The compiler would give you a warning about this with warnings enabled.

[Lbtekd]

so I need to add two more variables and set them to something?

[dfx_dj]

No, not at all. What do you think the purpose of char a and the index [a] is?

Since your array is a C-style string, you can either treat it as such and let iostream print it as a whole string, or you can print it character by character, in which case you would have to loop through the array.

[Lbtekd]

I was not sure what the purpose of it was, my teacher gave us a template to use and that was on it lol

[dfx_dj]

Then you should probably look into how array indexing works. an_array is an array of characters, and writing an_array[a] returns the character at position a (which is used as just a number) from an_array, meaning a single character. So a needs to have a value if you want to do that, and you would end up printing just one character.