noob question about sizeof() - Printable Version

noob question about sizeof() - Printable Version

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+--- Thread: noob question about sizeof() (/showthread.php?tid=538050)

noob question about sizeof() - dudaefj - 19.09.2014

hello

I know it is wrong, but how I do it right?

PHP код:



sizeof(VehicleInfo[vehicleid][vPlaca])

PHP код:



forward SetVehicleNumberPlateEx(vehicleid, numberplate[]);

public SetVehicleNumberPlateEx(vehicleid, numberplate[])

{

    format(VehicleInfo[vehicleid][vPlaca], sizeof(VehicleInfo[vehicleid][vPlaca]), "%s", numberplate);

    SetVehicleNumberPlate(vehicleid, VehicleInfo[vehicleid][vPlaca]);

}

Re: noob question about sizeof() - Dignity - 19.09.2014

This is the correct way of doing it.

Re: noob question about sizeof() - Vince - 19.09.2014

Can't be reliably retrieved. Put the number itself or a definition instead.

Re: noob question about sizeof() - Stinged - 19.09.2014

Just enter its size.
Also, you should use strcpy for this, not format.

pawn Код:

#define strcpy(%0,%1) strcat((%0[0] = '\0', %0), %1)

strcpy(VehicleInfo[vehicleid][vPlaca], numberplate, SIZE HERE);

Re: noob question about sizeof() - dudaefj - 19.09.2014

Quote:

Originally Posted by Mionee

This is the correct way of doing it.

no, it's not.
the following error is returned:

Quote:

BSL2.pwn(2603) : error 001: expected token: "]", but found "-identifier-"
BSL2.pwn(2603) : warning 215: expression has no effect
BSL2.pwn(2603) : error 001: expected token: ";", but found "]"
BSL2.pwn(2603) : error 029: invalid expression, assumed zero
BSL2.pwn(2603) : fatal error 107: too many error messages on one line

Quote:

Originally Posted by Vince

Can't be reliably retrieved. Put the number itself or a definition instead.

are you sure?
It's so sad ;(

Re: noob question about sizeof() - Vince - 19.09.2014

Quote:

Originally Posted by dudaefj

are you sure?
It's so sad ;(

Yes. For a regular array, the correct way of doing it would be:

pawn Код:

sizeof(array[])
// or
sizeof(array[][])

But since this concerns an enum, I have no idea what size would be returned. I suppose it'd be the largest one. So if you have something like:

pawn Код:

enum myVars {
    string1[64],
    plate[16]
}

There'd be a good chance that it'd return 64, which is not what you want.