String, Character Arrays

[Rhoon]

I'm trying to return a string or a character array. Whats the best way to do this in C++?

Also, is there a way to make an integer for 4 bits long (max of +- 32). I'm expecting to use a large amount of int's, but I don't want numbers above 20 and the rest of the bits are being wasted.

thanks in advance,

Andrew

 

[JOLESEN]

To return a string or an array is very easy :
simply return(string/array).
This method however will have to construct a new object when returning the object (I assume it is an automatic variable that's being returned).
If this is done on large objects and/or done very often, maybe you would want to pass a reference to the string/array instead.
Also you could do a new(string/array) and return a pointer to that object. This will have to be deleted afterwards.
Quite a few options - Pick one that suits your preferences and performance considerations.

To work with numbers in the 0->20 range, you will need 5 bits.
I would use a character type (1 Byte).
/JOlesen

 

[Rhoon]

In the class I've built, I'm trying to avoid as many pointers as possible, I'm not a big fan of them. I'm trying to have the return type on the function an array or string.

string function_name(int, int) {
// Code here

} // end function

or

char[] function_name(int, int) {} <<-- the [] gets errors thrown, is the problem with no numbers in the []?
char function_name(int, int) {} <<-- obviously doesn't work.

 

[JOLESEN]

Stick to the string return - it's a good choice for most purposes.

string function_name(int arg, int arg2)
{
string svar;

....

return(svar);
} // end function /JOlesen