Converting an int into a char[]?

[FireFreek]

I'm using a function that outputs text on the screen, but only accepts a const char*. So I made a function that would take each digit and put it into a char[](called a C style string i think?).

Unfortunately when I did this all it would output seemed to be garbage data(although alot of the characters were the same, so it could be something else)
Could someone help me convert some ints into char[]s?

Here's the function i made:

char* intToChar(int x)
{
     char* y = NULL;
           y = new char[255];
     int count = 0;
     
     while(x!=0)
     {
     y[count] = (char)(x%10);
     x /= 10;
     count++;
                
                }
                return y;
     
     }

[webJose]

There is a function already built-in that you can use: itoa().

BUT, since you are learning C++, you might want to understand what is going on with yours.

Assuming your math is correct (I did not pay attention to it), your problem lies on line 9. Instead, you need:

y[count] = (char)(x % 10 + '0');

A value of zero casted as a char will yeild a character whose code is zero, and that character is NOT the character that represents the number zero.

[helios]

There is a function already built-in that you can use: itoa().

No, there isn't.

You can find exactly how many characters you'll need by dividing the number by ten until it becomes zero.

[webJose]

helios, I'm confused. I have used itoa() in the past to get string representations of numbers.

What do you mean?

[Bazzy]

itoa isn't standard: http://www.cplusplus.com/reference/clibrary/cstdlib/itoa/

[mcleano]

Read: http://www.cplusplus.com/forum/articles/9645/ to find out one of the better ways to do conversions.

Also, itoa() is non-standard.

[FireFreek]

Ok I tried what WebJose told me, and it still doesn't seem to work.. All it seems to output are '^' and 'x', and i'm not sure why. Since itoa doesn't seem like a good idea to use, i'm thinking about using stringstreams. But if i put a string where a char[] is supposed to be, would it still work?

edit: Tried the stringstream approach, but it wouldn't take the string. Is there a function to convert string to char[]?

[Bazzy]

use string::c_str() to get a const char*, then use strncpy to copy it to a modifiable char array http://www.cplusplus.com/reference/clibrary/cstring/strncpy/

[FireFreek]

Ah thanks, but i found the function sprintf(), and it worked fine.