Creating stock only if not difined

Creating stock only if not difined - Printable Version

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+--- Thread: Creating stock only if not difined (/showthread.php?tid=446088)

Creating stock only if not difined - Swimor - 24.06.2013

Hello,

I want to build macro that will create stock only if the stock not exists, for example:

Код:

#define mystock%0@%2(%1) \
    #if !defined %0@0 \
        stock%0@0(%1) \
    #else \
        stock%0@%2(%1) \
    #endif

But it will not work... Is there any way to do this?

Re: Creating stock only if not difined - [MG]Dimi - 24.06.2013

pawn Код:

#if !defined [what has to be defined]
    
#define [define here]

#endif

But I don't quite understand why are you using %0 and so on. Is it only one stock you want to add to script in case it doesn't exist?

Re: Creating stock only if not difined - MP2 - 24.06.2013

pawn Код:

#if !defined MyFunction

stock MyFunction(playerid)
{
    // Code
}

#endif

That simple.

Re: Creating stock only if not difined - Swimor - 24.06.2013

Quote:

Originally Posted by MP2

pawn Код:

#if !defined MyFunction

stock MyFunction(playerid)
{
    // Code
}

#endif

That simple.

Dead you read my first comment?

This is what I want to do!:

Код:

#define mystock%0@%2(%1) \
    #if !defined %0@0 \
        stock%0@0(%1) \
    #else \
        stock%0@%2(%1) \
    #endif

So simple?

Re: Creating stock only if not difined - [MG]Dimi - 24.06.2013

Why? I guess you are doing it wrong. Can you give us pure example where you would use it?

Re: Creating stock only if not difined - Mauzen - 24.06.2013

His point is to have one define for all stocks, not one define for each function, so you could do stuff like

pawn Код:

mystock function1(params) {
    printf("blablabla");
}

//this one will be ignored
mystock function1(params) {
    printf("albalbalb");
}

As far as i know this isnt possible, as you cant access the function body in a define, so you could only affect the header of the function, but not leave out the whole function.
I also suggest you to avoid redefining function like this again and again. It will get harder to see which function really is used if you got 5 different ones spread over your gamemode and all the includes.