Setting string size via function parameter

Setting string size via function parameter - Printable Version

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+--- Thread: Setting string size via function parameter (/showthread.php?tid=484363)

Setting string size via function parameter - GiS - 30.12.2013

Why doesn't this work? Can I set the size of a string with a variable somehow? It can be useful in a function.

pawn Код:

someFunction(size) {
    new string[size];
}

Код:

error 008: must be a constant expression; assumed zero
error 009: invalid array size (negative, zero or out of bounds)
error 036: empty statement
fatal error 107: too many error messages on one line

Re : Setting string size via function parameter - [HRD]Mar1 - 30.12.2013

pawn Код:

int size;
function(size) {
    new string[size];
}

Re: Setting string size via function parameter - Patrick - 30.12.2013

Never tried creating a little function using a stock I usually use macro for one line function, the code below compiled.

pawn Код:

#define Create.%0(%1) \
    new %0[%1]

Compilation

pawn Код:

Pawn compiler 3.2.3664          Copyright (c) 1997-2006, ITB CompuPhase

Usage

pawn Код:

Create.string(128);
    
format(string, sizeof(string), "aa");

Parameter

pawn Код:

Parameter : Create_StringName(Size);

Re: Setting string size via function parameter - Ada32 - 30.12.2013

Quote:

Originally Posted by pds2k12

Never tried creating a little function using a stock I usually use macro for one line function, the code below compiled.

pawn Код:

#define Create.%0(%1) \
    new %0[%1]

Compilation

pawn Код:

Pawn compiler 3.2.3664          Copyright (c) 1997-2006, ITB CompuPhase

Usage

pawn Код:

Create.string(128);
    
format(string, sizeof(string), "aa");

Parameter

pawn Код:

Parameter : Create_StringName(Size);

that's NOT how you use macros!

Re: Setting string size via function parameter - Patrick - 30.12.2013

Quote:

Originally Posted by Ada32

that's NOT how you use macros!

Zir can u sho me how 2 use macro? Zorry me beginner in scripting, please show me zir, i want to know hau also zorry me no speak english veri will.

Re: Setting string size via function parameter - Ada32 - 30.12.2013

Quote:

Originally Posted by pds2k12

Zir can u sho me how 2 use macro? Zorry me beginner in scripting, please show me zir, i want to know hau also zorry me no speak english veri will.

i'll do you better -> https://sampforum.blast.hk/showthread.php?tid=166680

AW: Setting string size via function parameter - GiS - 30.12.2013

So there's no way I can use this without a macro?

Re: Setting string size via function parameter - Patrick - 30.12.2013

Quote:

Originally Posted by Ada32

i'll do you better -> https://sampforum.blast.hk/showthread.php?tid=166680

I won't argue with you, you don't even show me what I did wrong in there, there's alot of different style creating a macro, I apologize for being unprofessional *(Above, because your comment made me lol)

Pawn code

pawn Код:

#include <a_samp>

#define Create.%0(%1) \
    new %0[%1]
    
main()
{
    Create.string(128);
    
    new pds2k12 = 60 * 10 / 5;
    format(string, sizeof(string), "60 x 10 ч 5 = %i", pds2k12);
    print(string);
}

Result

pawn Код:

60 x 10 ч 5 = 120

Try the code here: http://slice-vps.nl:7070/

EDIT: lets go hard if you don't believe.

Pawn Code

pawn Код:

#include <a_samp>

#define Create.%0(%1) \
    new %0[%1]
    
main()
{
    new StartTick = GetTickCount();
    Create.string(128);
    printf("Took %i ms to create a string", GetTickCount() - StartTick);
    
    new StartTick1 = GetTickCount();
    new pds2k12 = 60 * 10 / 5;
    format(string, sizeof(string), "60 x 10 ч 5 = %i", pds2k12);
    print(string);
    printf("Took %i ms to execute the string & variable", GetTickCount() - StartTick1);
}

Result

Код:

Took 0 ms to create a string
60 x 10 ч 5 = 120
Took 1 ms to execute the string & variable

AW: Setting string size via function parameter - GiS - 30.12.2013

Well, thanks, but is there a way to do it with a function as shown above?

Re: Setting string size via function parameter - PowerPC603 - 30.12.2013

AFAIK, pawn requires strings with a fixed size.
You also cannot resize an existing string or array in pawn during runtime.