[iggy1]

Hello i was looking through zcmd and came across this code.

pawn Код:

zcmd_g_HasOPCS = funcidx("OnPlayerCommandReceived") != -1;

To me that translates to "zcmd_g_HasOPCS" equals "funcidx("OnPlayerCommandReceived")" doesn't equal -1.

I just don't understand what it is for i have noticed it in a few other incs too.

I never do this when hooking callbacks. I do use funcidx to check if a func exists but never with -1 after it (when assigning to a var). I'm thinking maybe i should do it this way since all the experienced/pro coders use it.

Is this really necessary? And why?

I've just been doing this.

pawn Код:

g_HasORIL = funcidx("OnRetrieveIpLocation");

Thanks.

[zSuYaNw]

This not necessary,
because this function (funcidx) return's the return of function..

Exemple:

pawn Код:

printf("%d",funcidx("MyPublic"));


MyPublic(); public MyPublic()
{
    return 1;
}

Show's "1".

[iggy1]

It actually returns the index of a function. -1 if the func doesn't exist.

I understand why i would see this code.

pawn Код:

if(funcidx("iploc_OnGameModeInit") != -1)

But not when assigning to a var

pawn Код:

zcmd_g_HasOPCS = funcidx("OnPlayerCommandReceived") != -1;

[zSuYaNw]

for locate value ...?

[[HiC]TheKiller]

That value is assigned to increase the speed on OnPlayerCommandText. Setting zcmd_g_HasOPCS on OnFilterScriptInit / OnGameModeInit only has to be called once rather than multiple times.

[iggy1]

Quote:

Originally Posted by ****** When you're not sure what an expression does, add the brackets that are implicit in operator precedence: ... zcmd_g_HasOPCS = (42 != -1); ...

Thanks if i had thought of the funcidx call as a number instead of a function i would have got that. I get it now thanks.

@ Killer i get why it's assigned just didn't get the "!= -1" part. Thanks for reply

[Dude_Lebowski]

omg sounds complicated