Array Question

[Marth]

I feel like i've asked this question 10 times and I still don't understand it.

I have code that puts the alphabet into an array.

void alphabet()
{
	
	char letter = 'A';
	char alphabet[26];

	for (int i = 0; i < 26; i++) {
			alphabet[i] = i + letter;
			
	}

it seems like a for loop is like vegas, what happens in a for loop, stays in a for loop.

I want to take this array and then play with it outside of the function in my main() block. This is more of a philosophical question.

what am i missing here?

[ShiftLeft]

Your declaring alphabet inside a function, therefore when the function terminates, alphabet is lost.

void getLetters (void);

    char alphabet [26];

int main (void) {

    getLetters ();
    return 0;
}

void getLetters () {
    // Your code minus array declaration
}

You could also declare alphabet in main and pass it as a parameter to getLetters.

[Marth]

if i pass it as an argument, that just means its a declaration right?

I would still need to be able to use the array once its filled. I'm actually trying to take the array I have filled in my alphabet() function and use the array it creates in another function.

but more importantly, i'm struggling to understand how to fill the array in a function and use the array in main.

void alphabet();

int main()
{

// play with
// alphabet[]
// here 


}

void alphabet() {

//code here to
// fill array

alphabet[] // is now filled 
}

[ShiftLeft]

Method 1:

#include	<iostream>

using namespace std;

void fillArray ( char []);

int main() {
	char letters [26];
	
	fillArray ( &letters [0] );
}

void fillArray( char letters [] ) {

	for (int cnt = 0; cnt < 26; cnt++ )
		letters [cnt] = cnt + 'A';
}

Method 2

#include	<iostream>

using namespace std;

char *fillArray ();

int main() {
	char *alphabet;
	
	alphabet = fillArray ();
	cout << alphabet << endl;
	delete alphabet;
}

char *fillArray() {
	char *alphabet = new char [26];
	
	for (int cnt = 0; cnt < 26; cnt++ )
		alphabet [cnt] = cnt + 'A';
	
	alphabet [26] = '\0';
	return alphabet;
}

[Marth]

Conor Bless you ShiftLeft.

I didn't even think about calling the memory space instead of the variable.

Both examples I will hold onto for a long time. thanks