#define VALUE VARIABLE - Printable Version

#define VALUE VARIABLE - Printable Version

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+--- Thread: #define VALUE VARIABLE (/showthread.php?tid=614825)

#define VALUE VARIABLE - Shinja - 13.08.2016

I made a dialog to change some defines

PHP Code:



//OnDialogResponse...case dialogid:

#undef VALUE

#define VALUE strval(inputtext)

But when i use it example

PHP Code:



printf("VALUE = %d", VALUE);

In this line i get error "Undefined Symbol inputtext"

and example

PHP Code:



for(new i=0; i<VALUE; i++)

i get error "Undefined Symbol inputtext"

How to do it correctly?

Re: #define VALUE VARIABLE - PrO.GameR - 13.08.2016

Defines are constants that get changed compile time, you need to use variables for that.

Re: #define VALUE VARIABLE - Misiur - 13.08.2016

Well, are you doing those things inside OnDialogResponse? Otherwise you don't have inputtext.

Re: #define VALUE VARIABLE - Shinja - 13.08.2016

Quote:

Originally Posted by Misiur

Well, are you doing those things inside OnDialogResponse? Otherwise you don't have inputtext.

Yes

PHP Code:



//OnDialogResponse...case dialogid: 

#undef VALUE 

#define VALUE strval(inputtext)

Quote:

Originally Posted by PrO.GameR

Defines are constants that get changed compile time, you need to use variables for that.

I tried it..

PHP Code:



new VALUE = 25;

complier crashes in this line

PHP Code:



new Info[MAX_PLAYERS][VALUE][ENUM];

Re: #define VALUE VARIABLE - PrO.GameR - 13.08.2016

Because compiler needs constants when initializing arrays, there is no memory allocation in pawn or dynamic array sizes.

Re: #define VALUE VARIABLE - Shinja - 13.08.2016

Quote:

Originally Posted by PrO.GameR

Because compiler needs constants when initializing arrays, there is no memory allocation in pawn or dynamic array sizes.

Noway?

Re: #define VALUE VARIABLE - SickAttack - 13.08.2016

printf("VALUE = %d", VALUE);

pawn Code:

// ** INCLUDES

#include <a_samp>

// ** DEFINES

#define VALUE strval(inputtext)

// ** MAIN

main()
{
    print("Loaded \"blank.amx\".");

    OnDialogResponse(0, 0, 0, 0, "50");
}

// ** CALLBACKS

public OnGameModeInit()
{
    return 1;
}

public OnGameModeExit()
{
    return 1;
}

public OnDialogResponse(playerid, dialogid, response, listitem, inputtext[])
{
    printf("%d", VALUE);
    return 1;
}

for(new i = 0; i < VALUE; i ++)

pawn Code:

// ** INCLUDES

#include <a_samp>

// ** DEFINES

#define VALUE strval(inputtext)

// ** MAIN

main()
{
    print("Loaded \"blank.amx\".");

    OnDialogResponse(0, 0, 0, 0, "50");
}

// ** CALLBACKS

public OnGameModeInit()
{
    return 1;
}

public OnGameModeExit()
{
    return 1;
}

public OnDialogResponse(playerid, dialogid, response, listitem, inputtext[])
{
    for(new i = 0; i < VALUE; i ++)
    {
        printf("%d", i);
    }
    return 1;
}

All work.

new Info[MAX_PLAYERS][VALUE][ENUM];

Set it to the highest value being used.

Re: #define VALUE VARIABLE - Gammix - 13.08.2016

Quote:

Originally Posted by Shinja

Yes

PHP Code:



//OnDialogResponse...case dialogid: 

#undef VALUE 

#define VALUE strval(inputtext)

I tried it..

PHP Code:



new VALUE = 25;

complier crashes in this line

PHP Code:



new Info[MAX_PLAYERS][VALUE][ENUM];

Declaring dynamic arrays isn't supported by PAWN, you have to have a constant value. In this case you are relying on "strval", not a constant.

Defines are just text replacements, so you are actually doing this: (not valid)

pawn Code:

new Info[MAX_PLAYERS][strval(inputtext)][ENUM];

And in case you are using "VALUE" inside of OnDialogResponse, the error should not occur.
Also i guess its meaningless to declare a macro instead of a variable here because basically you want a better readable code and don't want to process "strval" again and again. In that case, variables are helpful not macros.

pawn Code:

new VALUE = strval(inpittext);

Re: #define VALUE VARIABLE - Shinja - 13.08.2016

Quote:

Originally Posted by SickAttack

printf("VALUE = %d", VALUE);

pawn Code:

// ** INCLUDES

#include <a_samp>

// ** DEFINES

#define VALUE strval(inputtext)

// ** MAIN

main()
{
    print("Loaded \"blank.amx\".");

    OnDialogResponse(0, 0, 0, 0, "50");
}

// ** CALLBACKS

public OnGameModeInit()
{
    return 1;
}

public OnGameModeExit()
{
    return 1;
}

public OnDialogResponse(playerid, dialogid, response, listitem, inputtext[])
{
    printf("%d", VALUE);
    return 1;
}

for(new i = 0; i < VALUE; i ++)

pawn Code:

// ** INCLUDES

#include <a_samp>

// ** DEFINES

#define VALUE strval(inputtext)

// ** MAIN

main()
{
    print("Loaded \"blank.amx\".");

    OnDialogResponse(0, 0, 0, 0, "50");
}

// ** CALLBACKS

public OnGameModeInit()
{
    return 1;
}

public OnGameModeExit()
{
    return 1;
}

public OnDialogResponse(playerid, dialogid, response, listitem, inputtext[])
{
    for(new i = 0; i < VALUE; i ++)
    {
        printf("%d", i);
    }
    return 1;
}

All work.

new Info[MAX_PLAYERS][VALUE][ENUM];

Set it to the highest value being used.

That's not what i mean't, but thanks!

Thanks Gammix for explanations!

Re: #define VALUE VARIABLE - SickAttack - 13.08.2016

Quote:

Originally Posted by Shinja

That's not what i mean't, but thanks!

Yeah, I see. The definition doesn't store values, so who knows what you were thinking. And the main post lacks of what you were trying to do.