doubt ampersand - Printable Version

doubt ampersand - Printable Version

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+--- Thread: doubt ampersand (/showthread.php?tid=377949)

doubt ampersand - Rodrigo. - 15.09.2012

Hello guys.

Well, I see in many codes, this:

pawn Код:

//exemple
stock Lyrics(&number, &lol)

This has the same function if I put it this way? :

pawn Код:

stock Lyrics(number, lol)

Does this change anything?...

Re: doubt ampersand - BadgerLedger - 15.09.2012

the & is to return multiple values
https://sampwiki.blast.hk/wiki/Stocks

Re: doubt ampersand - Vince - 15.09.2012

The ampersand means that the argument is to be passed as a reference, not as a value. If you pass arguments by value (the default) then the original value of the variable will not change. If you pass arguments by reference then they will. For example:

pawn Код:

new a = 42;

stock byRef(&value)
{
    value++;
}

byRef(a);
printf("%d", a);

Will print 43. Whereas:

pawn Код:

new a = 42;

stock byVal(value)
{
    value++;
}

byVal(a);
printf("%d", a);

Will still print 42.

Re: doubt ampersand - Rodrigo. - 15.09.2012

wow, ok.
Thanks to 2.