Variable (Variable name) ?

[itralala]

Hello,

I'm currently migrating my dev team from Windev Mobile language (a RAD tool for developping WM applications) to Objective-C / Cocoa.

One of the most powerfull feature of Windev Mobile is the dynamic variable name (it also exists in PHP / Java).

For exemple :

int var1 = 2;
int var2 = 17;
int i = 1;
NSLog(@"%d", var & i) ---> would display 2
int i = 2;
NSLog(@"%d", var & i) ---> would display 17

So, is this possible to use dynamic variable name syntax ?

Thank you,

Vincent

[thomashw]

You can do it using macros and using the ## operator. This operator will join to tokens into a single token.

So if you had an integer named x20, you could do something like this at the top of your code:

#define printx(n)  printf (”%i\n”, x ## n)

To call it in your code you'd write this:

printx (20);

Which would result in this:

printf (”%i\n”, x20);

Hope that helps.